Baseball Terms
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- Aboard: on base. when there are runners safely on base, there are runners aboard – as if they had boarded a train or some other vehicle.
- Ace: A team's best pitcher, usually the first pitcher in starting rotation.
- After Being Batted, Travels Directly From The Bat To The Catcher's Hands And Is Legally Caught By The Catcher (foul Tip).:
- Ahead In The Count: a term that signifies whether the batter or pitcher possesses the advantage in an at
- Alley: Also called "gap"; the outfield area between the outfielders.
- Appeal: a claim by the fielding side to an umpire that a rules violation has taken place.
- Around The Horn: A play run from third, to second, to first base.
- Assist: An outfielder helps put an offensive player out, crediting the outfielder with an "assist".
- Assist: if a fielder throws the ball to another fielder who makes an out, he's credited with an assist.
- At Bat: An offensive player is up to bat. The batter is allowed three outs.
- Away: games played at an opponent's home field are "away games". the visiting team is sometimes called the "away" team.
- Backdoor Slider: A pitch thought to be out of strike zone crosses the plate.
- Backstop: The barrier behind the home plate.
- Backstop : a barrier behind home plate to stop the ball if the catcher misses it.
- Bad Hop: a ball that bounces in front of an infielder in an unexpected way, often as a result of imperfections in the field or the spin on the ball.
- Bag: The base.
- Balk: An illegal motion made by the pitcher intended to deceive runners at base, to the runners' credit who then get to advance to the next base.
- Ball: a pitch which is called outside the strike zone, and which the hitter doesn't try and swing at.
- Ball Park: a baseball field.
- Ballist: A vintage baseball term for "ballplayer".
- Baltimore Chop: A hitting technique used by batters during the "dead
- Base: tender
- Base Coach: A coach that stands on bases and signals the players.
- Base Coaches : when a team is batting, a coach is allowed to occupy a box close to first and third bases.
- Base Hit: A hit that reaches at least first base without error.
- Base Line: A white chalk line drawn on the field to designate fair from foul territory.
- Base On Balls: Also called "walk"; an advance awarded a batter against a pitcher. The batter is delivered four pitches declared "ball" by the umpire for going outside the strike zone. The batter gets to walk to first base.
- Base Paths: the areas between the base pads are marked out with dirt. A runner cannot run outside the base paths to avoid a tag.
- Baseball: The official ball used in the sport of baseball.
- Baseman: the fielders positioned near to first, second and third base.
- Basement: last place, bottom of the standings.
- Bases Empty: Bases contain no runners.
- Bases Loaded: Bases contain runners.
- Bat: Equipment the batter uses to strike the ball.
- Bat Around: when each of the nine players in the lineup makes a plate appearance during a single inning.
- Bat Boy: a person employed to run on and collect the hitter's bat when he drops it to start running.
- Batter: Offensive player in the batting box who will attempt to strike the ball.
- Batter's Box: either side of home plate is a batter's box, in which the batter has to stand when he tries to hit the baseball.
- Battery: A pitcher
- Batting Around (the Order): an inning in which all nine hitters appear at the plate without three outs being made.
- Batting Average: batting average (ba) is the average number of hits per at
Clever Baseball Terms
- Batting Order: The official order, as determined by the umpire, of players who will step up to bat.
- Beanball: a pitch thrown at the hitter's head (this is illegal).
- Behind: The catcher.
- Behind In The Count: for the batter
- Bench: "the bench" is where the players sit in the dugout when they are not at bat, in the on
- Benches Clearing: all of the players from both sides leaving the benches (usually for a brawl!).
- Bender: a curveball.
- Big Leagues: a nickname for major league baseball
- Big Leagues (or "the Bigs"): major league baseball.
- Bleachers: the cheap seats in the outfield, furthest away from the main action.
- Bleeder: a weakly hit ground ball that goes for a base hit. a scratch hit.
- Bloop: a softly hit, or mis
- Blow: to blow a game is to lose it after having the lead.
- Blue: a derogatory term commonly used by players to address an umpire, referring to the typical dark blue color of the umpire's uniform.
- Boot: an error by a fielder where instead of gathering the ball at his feet he accidentally kicks it away or knocks it away with the heel of his glove.
- Bottom: The second half of the inning.
- Bottom Half Of The Inning : the half
- Bottom Of The Inning: the second half or "last half" of an inning, during which the home team bats, derived from its position in the line score.
- Box Score: Important inning information an official keeps track of by checking a series of boxes.
- Breaking Ball: A curve ball that breaks speed.
- Breaking Up A Double Play: a runner who slides hard into second (or third base) and whilst being put out himself, puts the thrower off sufficiently to prevent him throwing out a second runner at a different base.
- Broken Bat: a bat which shatters when the ball is hit.
- Bronx Cheer: The sound of "boos" from the crowd during a game.
- Brush: back
- Brush Back Pitch: a pitch thrown "inside" to force a hitter crowding the plate to back off.
- Bull Pen: the area in which the relief pitchers warm
- Bunt: The ball is not swung at, but contacts the bat within the infield.
- Called Game: The umpire temporarily stops the game.
- Called Strike: a strike which is called by the umpire (as opposed to a swing and a miss).
- Can Of Corn: An easy fly
- Catch: An outfielder captures the ball with his hand or glove.
- Catcher: The player poised behind home plate to catch balls missed by the batter.
- Catcher's Box: Space designated behind home plate for the catcher in between pitches.
- Caught Looking : a third strike where the hitter doesn't even swing, looking in vain for a "ball".
- Cellar: A team is in last place.
- Center Field : the middle part of the outfield.
- Change Up : a slower pitch thrown with the same action as a fastball.
- Chatter: to verbally challenge or taunt to distract the opposing batter.
- Check Swing: a false swing at a pitch, where the hitter starts swinging and then tries to stop.
- Cheese: A great fastball pitch.
- Chin Music: A pitch that comes close to a batter's face.
- Choke: up
- Choke Up: a batter "chokes up" by sliding his hands up from the knob end of the bat to give him more control over his bat.
- Chopper: a ball hit hard into the ground.
- Circus Catch: A great catch by an outfielder.
- Clean: up
- Clear The Bases: a batter who drives home all the runners on base is said to "clear the bases."
- Climbing The Ladder: a pitcher throwing successive fast balls higher and higher in the strike zone.
- Closer: Relief pitcher who finishes out the game.
- Closer : the relief pitcher who comes in late in the game to make the final few outs.
- Clutch: a player who performs at key moments.
- Coaches: the staff who assist the manager in running the team.
- Complete Game: The starting pitcher pitches the whole game.
- Corked Bat: a bat which has has been hollowed out, and cork substituted, to make home runs easier to hit. This is illegal.
- Count: The total balls and strikes tallied on a batter.
- Crank: An old
- Curveball: A pitch that angles to the left when delivered with the right hand, and visa versa.
- Cut: off man
- Cut Off Man: an infielder who intercepts a throw from the outfield to relay it to whichever base he considers appropriate.
- Cutter: Also called "cut fastball"; a kind of fastball that breaks slightly before reaching home plate.
- Cycle: Also called "natural cycle"; a batter achieves a single, double, triple, and a home run in one game.
- Daisy Cutter: A vintage term for ground ball.
- Dead: A ball that is out.
- Dead Ball : a temporary break in play, indicated when an umpire calls "dead ball".
- Defense: The team out on the field.
- Delivery: a pitcher throwing the ball to the hitter.
- Designated Hitter: Non
- Diamond: The baseball field.
- Diamond : the name for the infield, marking out the four bases.
- Dinger: Homerun.
- Dinger: a home run.
- Disabled List (dl) : when a player is injured a team can place him on the "disabled list", freeing up a space on the roster without any penalty. A player placed on the DL must remain there for at least 15 days.
- Doctoring The Ball: a pitcher doing something illegal to the ball to make it move more when he pitches.
- Donut: Circular weight attached to the bat and used in warm
- Double: A second
- Double Header: A team plays two games in a row.
- Double Play: A defense play resulting in two outs.
- Double Play Depth : a fielding alignment where the infielders field closer than usual, hoping to field a ground ball and throw out runners going to both second and first base.
- Double Steal: a play when two runners try to steal bases at the same time.
- Double : a base hit which allows the hitter to reach second base.
- Down The Pipe/middle : a pitch thrown in the middle of the strike zone.
- Drive In A Run : a batter making a hit which brings a base runner in to score.
- Dug Out: the area in which the players, manager and coaches sit when they aren't on the field of play or in the bullpen.
- Dugout: Holding area for baseball officials and uniformed teammates not in play.
- Early Innings: the first three innings of a regulation nine
- Earned Run: A home run scored with no errors against defense.
- Earned Run Average (era): the number of earned runs given up by a pitcher averaged over nine innings.
- Error: A defense foul.
- Extra Innings : if the score is tied after nine innings, then extra innings are played until the score is broken.
- Fair: a ball hit by the batter that stays within the foul lines between first and third base.
- Fair Ball: A hit that stays within "fair territory".
- Fair Territory: The field that is within playing boundaries.
- Fast Ball: A ball pitched straight and fast.
- Fat Pitch: a pitch that is located exactly where the hitter is expecting it.
- Fielder: One of nine defensive team players.
- Fielder's Choice: A fielder opts to throw the ball to a base other than the one the batter is running toward.
- Fielding Average: a statistic calculated to show a fielder's efficiency.
- Fighting Off A Pitch: a batter deliberately hitting a pitch foul to keep his at
- Find A Hole: to get a base hit by hitting the ball between infielders.
- Fireman: The relief pitcher that closes out the game.
- Fly Ball: A bat results in a high
- Force Out: An out recorded when a runner is forced to advance to the next base because there is a runner behind him.
- Force Play: A batter becomes a runner forcing a baseman to lose his position.
- Forfeited Game: A game is ended and the opponent is awarded because of a foul committed by defense.
- Fork Ball: A ball pitched between the index and middle fingers resulting in a slower, and often ground ball.
- Foul Ball: A ball that settles outside the foul line.
- Foul Line: Line drawn from home base through the first and third bases, and perpendicularly upward from the outfield fence.
- Foul Lines: the lines that extend from home base through first and third bases to the outfield walls.
- Foul Poles: the poles that show where the foul lines meet the outfield wall. A ball has to hit or land inside of a foul pole to be a home run.
- Foul Territory: Area outside the foul line.
- Foul Tick: An old
- Foul Tip: a pitch that tips the bat and lands in the catcher's mitt
- Full Count: a count of 3 balls and 2 strikes; another strike will result in a strikeout, while another ball will result in a walk.
- Full Count : a count with three balls and two strikes.
- Fungo: A ball hit by a fungo bat to a fielder during practice.
- Fungo Bat: A type of bat, generally thinner and longer, used to hit a fungo.
- Gap: Area between outfielders.
Best Baseball Terms
- Gapper: a ball hit through a space between two outfielders and rolls all the way to the wall for extra bases.
- Glove: the glove fielders (except for the first baseman and catcher) wear on their non
- Going Around : the umpire ruling that a hitter has failed to check his swing and a strike should be called.
- Golfing: swinging at an obviously low pitch, particularly one in the dirt.
- Goodbye Mr. Spalding!: exclamation by a broadcaster when a batter hits a home run.
- Goose Egg: a zero on the scoreboard.
- Gopher: A homerun hit.
- Gopher Ball: a pitch which gets blasted for a home run.
- Grab : a catch.
- Grand Slam: A homerun hit while all bases are loaded.
- Grand Slam : a home run hit with the bases loaded (scoring four runs).
- Green Light: The coach signals a good move to a batter or runner.
- Ground Ball: A batted ball which rolls along the ground.
- Ground Out : an out made when a fielder tags a runner or the base before the runner gets there.
- Ground Rule Double : a hit automatically awarded by the umpires when the ball lands fair and bounces out of play.
- Grounder: Also called "ground ball", a hit that bounces off, or ends up rolling on, the infield.
- Gunned Down: a runner thrown out at a base.
- Hack: to swing awkwardly at the ball.
- Hanging Pitch: a pitch that was meant to move sharply to confuse the hitter, but didn't.
- Heater/high Heat: a fast ball.
- Hill: the pitcher's mound.
- Hit: The batter advances to a base without any field errors.
- Hit And Run: a play in which the runner sets off early gambling on the batter making a base hit.
- Hit The Dirt: to slide.
- Hitting For Average: a hitter who focuses on hitting singles, and getting on base.
- Hitting For Power: a hitter who focuses on extra base hits and/or home runs.
- Hitting For The Cycle: a game in which a batter hits a single, a double, a triple and a home run.
- Hold: a middle relief pitcher who inherits the lead when he takes the mound, and still leads when he leaves it.
- Holding The Runner: a baseman who stands close to a base, to prevent a runner from taking too big a lead away from the base.
- Hole In His Glove: a tendency to drop fly balls, usually after they hit (and seem to go through) the fielder's glove.
- Home Plate: Home base where the batter takes a swing; the final point to be reached by runners on the course of four bases of the baseball diamond.
- Home Plate Umpire: the umpire at home plate, who calls strikes and balls.
- Home Point: A vintage term for home base.
- Home Run: After striking the ball, the batter is able to pass through all four plates and return to home with no errors on the part of defense.
- Home Stand : a series of home games played in succession.
- Home Team: The team whose field the game is being played on. If the field is neither team's, both will mutually decide which one to call home team.
- Hop: the bounce of the ball.
- Hot Corner: Third base.
- Hurler: A vintage word for pitcher.
- Huzzah!: An old
- In The Hole: the area in which the short stop fields.
- Independent: a minor league ball club which isn't affiliated to any major league team.
- Infield: The portion of the baseball field bordered by three bases and home plate.
- Infield Fly: A fly ball in the infield that can easily be caught by an infielder.
- Infield Fly Rule: the rule that prevents the fielding side from deliberately dropping an easy catch to then make a double
- Infield : the area of the field inside the bases and base paths.
- Infielder: A player positioned on the infield.
- Inning: One of nine periods of playtime in an ordinary regulation game.
- Inning Ending Play: any play which results in the third out, ending an innings.
- Innings: a game is divided into innings. Each team has nine innings in which to score runs. The visiting team hits in the "top of the inning" and the home team hits in the "bottom of the inning".
- Inside: a pitch thrown on the side of the plate closest to the hitter.
- Inside The Park Home Run: a hit which allows the runner to reach home base without actually going over the outfield wall.
- Intentional Walk: A set
- Juiced: a term for a ball which has been doctored to make it more likely to get hit for a home run. Also now used to refer to a player who has done the same thing (through taking steroids!).
- Junking A Game : a game in which a team effectively give up trying to win, saving themselves for the next game.
- K: a strike out.
- Knuckle Ball: A method of holding the ball with the knuckles in order to prevent a spin on the ball.
- Knuckle Ball/knuckler: a slow pitch thrown with no spin that wobbles as it approaches the hitter.
- Late Innings: the seventh, eighth and ninth innings of a regulation nine
- Late Movement/movement Off The Plate) : a pitch that deviates just as it's about to reach the hitter.
- LCS: League Championship Series.
- LDS: League Divisional Series.
- Lead Off Batter: the first hitter in an inning.
- Left Field: the side of the outfield behind third base.
- Left On Base: a runner who is stranded on a base when the third out of the inning is made.
- Leg It: Run!
- Line Drive: A ball hit in a straight line directly to a fielder.
- Line Up: the batting order.
- Lineup: the batting order, which also lists each player's defensive position.
- Lit Up: a pitcher who is getting hit almost every at bat (as in, "he lit up the scoreboard!).
- Long Ball: a home run.
- Long Relief: a pitcher who comes in early in a game to replace a struggling starting pitcher.
- Loss: a statistic allocated to whichever pitcher is considered to be most responsible for a game being lost.
- Major Leagues (or "the Majors"): The American League and the National League.
- Manager : the person in charge of the day
- Mascot: The batboy, in old
- Mendoza Line: batting average of .200
- Middle Innings: the fourth, fifth and sixth innings of a regulation nine
- Middle Relief: a relief pitcher who follows the starting pitcher and pitches in the "middle innings".
- Middle Reliever: a relief pitcher who is brought in typically during the middle
- Minor Leagues (or "the Minors"): the lower ranked leagues which form the farm system for the major leagues.
- Mitt: the more heavily padded glove the catcher and first baseman are allowed to wear, which has the four fingers combined into one unit.
- Mound: The pitching hill.
- Muff: An error, in the early baseball era.
- Night Cap: the second game of a double header (even if it isn't played at night!).
- No: hitter
- No Hitter: Also called "no
- Nubber: a mis
- Numbers: statistics.
- Off The Fists: a pitch that hits high up on the bat near the hitter's hands.
- Off The Hook: a pitcher who expects to record a loss, and whose team score enough runs to tie the game, or take a lead.
- Offense: The team at bat.
- Official Scorer: a statistician who records and determines the scoring for each game.
- On: deck
- On Base Percentage: the proportion of plate appearances which lead to the hitter reaching base.
- On Deck: The next batter in the line
- On Deck: the batter who follows the hitter currently at the plate. He stands in the "on deck circle" warming up.
- One Hopper: a ball that bounces once before being fielded.
- Open Base: a base with no runner on it.
- Out: What the umpire calls when a batter or base runner for whatever reason cannot advance to the next base; such a player is said to be "retired".
- Out In Order: The first three batters are called out in one inning.
- Out : when a hitter or runner is removed from the field of play by the fielding side.
- Outfield: The area of the playing field that is outside the boundaries of the four
- Outfield Wall/fence: the wall or fence that marks the outer boundary of the field.
- Outfielder: A player in an outfield position.
- Outside: a pitch thrown on the side of the plate away from the hitter.
- Painting The Corners: a pitcher regularly locating his pitches at the edges of the strike
- Passed Ball: The ball escapes the catcher and runners get to advance to next base.
- Passed Ball: a pitch not caught by the catcher, and considered to be the catcher's fault.
- Pen: the bull pen.
- Pennant (winning The): the winner of a League Championship Series.
Top Baseball Terms
- Perfect Game: The pitcher prevents every batter from the opposing team from getting to first base.
- Perfect Game: a game in which the pitcher does not allow a single runner on base.
- Pick Off: a runner who is caught too far off his base and tagged out without trying to steal a base or a base hit being made.
- Pinch Hitter: A hitter replaces the starting player in the line
- Pinch Runner: a substitute runner who comes into the game to replace a base runner.
- Pine Tar: a sticky substance used by batters to improve their grip on the bat.
- Pitch: Delivery of the baseball to the batter.
- Pitch: the throw made by a pitcher to the hitter.
- Pitcher: The offensive player that delivers the ball to the batter.
- Pitcher's Mound: the mound in the centre of the field from which the pitcher throws to the hitters.
- Pitcher's Plate: a plate in the middle of the pitching mound with which the pitcher must be in contact whilst he pitches.
- Pitching Rotation: The pitching order.
- Pitchout: A deliberate wide pitch.
- Plate: the base at home, over which pitchers have to throw the ball to get a strike.
- Play: the call made by the home plate umpire to start play.
- Play At The Plate : a throw to home base which will arrive at the same time as a runner seeking to score.
- Pop Up/pop Fly: a fly ball in the infield.
- Position Player: Any baseball player but the pitcher.
- Power Alleys : the spaces between the outfielders to which hitters will try and drive balls for doubles or triples (or even an inside
- Power Pitcher : a pitcher who mainly throws fastballs.
- Pull Hitter: Hitting the ball toward the same side of the field from which he bats.
- Put Out: an out made by a fielder.
- Putout: A fielder earns credit for receiving the ball to put out a base runner or hitter.
- Quick Return Pitch: A pitch with intent to throw off the batter.
- Rain Delay: a delay in the game caused by rain.
- Rain Out: a game cancelled because of rain.
- RBI (runs batted In): any time a hitter gets a hit, a base on balls, or sacrifices and a run scores, he's credited with an RBI. A batter can also be credited with an RBI on an ordinary, non
- Relief Pitcher: The replacement for the starting pitcher.
- Reliever: any pitcher who comes in after the starting pitcher.
- Retire: The umpire calls an out, and a batter or base runner cannot advance to the next base.
- Retire In Order: an inning where three hitters appear, and all three are retired.
- Retire The Side : getting three outs and ending the inning.
- Right Field: the side of the outfield behind first base.
- Road Trip : a series of away games played in succession.
- Rookie: a player in his first full season in the major leagues.
- Rubber: the pitcher's plate.
- Rubber Arm: a pitcher is said to have a "rubber arm" if he can throw many pitches without tiring.
- Rubber Match : the deciding game of a three game series.
- Run: A runner crosses home plate without any errors.
- Run Batter In: Also known as "RBI", a record of points earned by a player for assisting his teammates in scoring points while up to bat.
- Run Down: Fielders tag a runner between bases.
- Runner: The player or batter advancing from one base to another.
- Runners On The Corners : base runners at first and third base (but not second).
- Sacrifice: a hitter deliberately sacrificing his out to advance at least one runner a base.
- Sacrifice Bunt: A bunt intended to advance a runner, to the batter's discredit.
- Sacrifice Fly: A fly ball out and a runner scores a point.
- Safe: Runner arrives safely at base, as called by the umpire.
- Save: Credit given a relief pitcher for keeping the team in the lead despite that the opponent's tying or winning runs are on base, or if three or more innings are pitched without a tie game.
- Scoring Position: Runner is on second or third base.
- Scoring Position : a base runner on second or third base, who can normally be expected to score on a single.
- Scout: Vintage for outfielder.
- Screwball: a curveball that moves into the hitter.
- Set Up Man: a pitcher who comes in to pitch before the closer.
- Seventh Inning Stretch: the period in the middle of the seventh inning, between the top and the bottom halves.
- Short Scout: Old
- Shortstop: Fielder positioned in between second and third bases.
- Show ("the Show"): the Major Leagues.
- Shut Out: A team fails to score any runs in a game.
- Shutout (pitching A Shutout): a team whose opponents do not score a single run.
- Signs: Hand or body signals given by the coach or key players.
- Single: A batter arrives safely to first base.
- Sinker: A pitched fastball aimed downward.
- Sky Ball: Vintage term for pop
- Slide: an attempt to get on base where the runner goes in feet first (hook slide) or head first.
- Slider: A pitch similar to a curveball but made with a straight wrist, resulting in what appears to be a fastball, but breaks when it reaches home plate.
- Slider: a pitch that drops away from the hitter at the same time as moving away from him.
- Slugger: a hitter who tends to get extra base hits (including home runs).
- Slugging Percentage: a statistic used to measure a batter's effectiveness at power hitting.
- Slump: a batter who has been struggling to hit over recent games.
- Solo: a home run hit with no runners on base.
- South Paw: a left handed pitcher.
- Spit Ball: Unlawful pitch in which the ball is coated with saliva, grease, or other such substance, causing the ball to react unpredictably.
- Split Fingered Fast Ball: a pitch which looks like a fastball, but slower and which dips at the hitter.
- Squeeze Play: a bunt on which a runner from third base tries to reach home base. On a "safety squeeze" the runner waits to see where the bunt goes before committing himself to, but on a "suicide squeeze" he takes off as the ball is pitched, which if the bunt goes wrong (or the hitter misses the bunt entirely) means it's suicide!
- Starter: The pitcher who starts the game.
- Steal: An offensive runner tries to advance to the next base during a pitch without the batter hitting the ball, or any assists.
- Stolen Base: The recorded number of steals by a runner.
- Stopper: a starting pitcher relied on to win a game when his team may have lost a few games in a row.
- Stretch: the pitcher's set position for delivering the ball to home plate.
- Strike: a pitch which the umpire rules is within the strike zone, or swung at and missed by the hitter.
- Strike Out: Three strikes by the batter.
- Strike Zone: The area over home plate the ball must pass into to qualify as a strike.
- Striker: Vintage term for batter.
- Striking Out The Side : an inning where the pitchers strikes out all three batters.
- Suicide Squeeze: The batter bunts the ball attempting to throw first baseman off, but instead allows third base runner, as soon as the ball is pitched but released, to flee to home plate.
- Swinging Bunt: a hit in which the batter takes a full swing at a pitch, but only succeeds in hitting it a few feet, like a bunt.
- Swinging Strike: a strike in which the hitter swings at a pitch and misses it.
- Switch: Hitter
- Tag: A runner must touch his occupied base after the ball is caught, and before advancing to the next base. Also refers to a defense player who touches a runner with the ball in an effort to put them out.
- Tagging Up : a runner waiting on a base ready to run once a fly ball catch is completed.
- Taking A Lead: a runner who inches away from a base to get a head
- Taking A Pitch: a hitter not swinging at a pitch hoping it'll be a ball.
- Tater: Colloquial term for homerun.
- Texas Leaguer: A hit that falls to the ground between the infielder and outfielder.
- Throw: Different than a pitch; use of the hand to drive the ball toward a teammate or intended goal.
- Thrown Away: a relay throw from a fielder which misses its target.
- Top: First half of the inning.
- Top Half Of The Inning : the half inning of the first team (always the visiting team).
- Touch All The Bases: to "touch all the bases" (or "touch 'em all") is to hit a home run.
- Triple: The batter makes it to third base without any errors or stopping.
- Triple Play: Three players are taken out in the course of one play.
- Two: base Hit
- Umpire: The official person in charge of the game.
- Uncle Charlie: Curve ball.
- Unearned Run : a run which scores as a consequence of an error (this isn't considered to be the "fault" of the pitcher).
- Utility Player: A person who can fill any position.
- Walk: Also called "base on balls"; after four pitches are delivered the batter is allowed advance to first base, forcing other runners on base to advance as well.
- Walk Off: a home run scored in the bottom of the final inning to win the game.
- Warning Track: a track in the outfield that marks that the wall is close by.
- Wheelhouse: A hitter's "sweet spot"; in other words their power zone.
- Whiff: To strike out.
- Wild Pitch: A pitch so wide that the catcher is unable to catch or block it, allowing runners to advance.
- Win: a statistic credited to whichever pitcher is considered to be most responsible for a game being won.
- Wind Up: the pitcher's motion in throwing to home base.
- Yakker: Curve ball.
