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Baseball Glossary
Learn the language of Baseball — answer-first definitions with real examples, beginner to pro.
39 terms
- Ahead vs Behind in the CountBeginnerMore balls than strikes is a hitter's count; more strikes than balls is a pitcher's count. Which side holds the edge reshapes how both of them play the rest of the at-bat.
- Arm Care RoutineBeginnerAn arm care routine is a set of general warmup, mobility, and strengthening exercises a throwing athlete performs regularly — usually before and after throwing — as part of a general, ongoing throwing-health practice.
- Bat PathBeginnerBat path is the three-dimensional route the barrel travels from load to finish. Its shape through the hitting zone, more than raw bat speed, decides whether contact is hard or weak.
- Bat-to-Ball SkillBeginnerBat-to-ball skill is a hitter's ability to make solid contact reliably — tracking the pitch, timing the swing, and getting the barrel to the ball — independent of how hard the ball is hit once contact is made.
- Bullpen SessionBeginnerA bullpen session is a practice throwing session, usually off a mound, in which a pitcher works through their pitch mix at game-like intent without live hitters or the pressure of a real game situation.
- Bunt TechniqueBeginnerBunt technique is the fundamental skill of deadening the ball off the bat by absorbing its speed rather than swinging — using soft hands, a squared or angled stance, and the bat as a cushion instead of a weapon.
- Catcher's Setup TargetBeginnerA catcher's setup target is the glove position and location presented before the pitch to give the pitcher a clear, steady aiming point and communicate the intended location.
- Charging a Ground BallBeginnerCharging a ground ball means running toward a slowly hit ball rather than waiting for it to arrive, shortening the throw and taking away a bunt or slow roller before it becomes a hit.
- Coachability (Intangibles)BeginnerCoachability is a player's willingness and ability to receive feedback, apply it without defensiveness, and adjust behavior or mechanics based on instruction — one of the "intangible" traits scouts and coaches weigh alongside physical tools.
- Crow Hop (Throwing)BeginnerA crow hop is a small skip-step a fielder uses after fielding a ball — replanting the back foot and shuffling toward the target — to gather momentum and align the body before a long or off-balance throw.
- Cutoff ManBeginnerThe cutoff man is the infielder who sets up in a direct line between an outfielder and the base under threat, ready to intercept the ball and redirect it if the original target is no longer the best play.
- Fielding FootworkBeginnerFielding footwork is how a player positions and moves their feet to field a ball cleanly and immediately set up a strong, accurate throw.
- Fielding Position (Ready Stance)BeginnerThe fielding position is the pre-pitch stance a fielder holds to be ready to move right away in any direction — knees bent, weight forward, feet shoulder-width, on the balls of the feet.
- Four-Seam FastballBeginnerThe four-seam fastball is the most common pitch in baseball — gripped across all four seams — and is usually the hardest, straightest pitch a pitcher throws.
- Four-Seam Grip (Throwing)BeginnerGripping the ball across four seams before a throw — rather than however it lies in the glove — produces a straight, true throw with maximum carry, the fielding equivalent of a pitcher's four-seam fastball grip.
- Front Foot LandingBeginnerFront foot landing is the moment the stride foot plants and becomes the stable post the hips rotate against. Its timing relative to the pitcher's release is the single biggest factor separating on-time hitters from late or rushed ones.
- High-Hands SetupBeginnerHigh hands in the stance or load position means the hands are set above the back shoulder. A launch position that gives the barrel a longer, downward-into-the-zone path to the ball.
- Innings Limit (Youth)BeginnerAn innings limit is a cap on the total number of innings a young pitcher is permitted or recommended to throw across a season or year, intended to manage cumulative throwing workload beyond any single game's pitch count.
- Lead Off BaseBeginnerA lead off base is the distance a baserunner takes from the bag before the pitch — maximising lead distance reduces the distance to the next base while managing pickoff risk.
- LoadBeginnerThe load is the small backward gathering of the hands and weight just before the swing starts — coiling the body to store elastic energy that fires into the ball when the swing begins.
- Lunging (Batting)BeginnerLunging is a timing fault where a hitter commits their weight and stride forward too early — usually while trying to catch up to velocity or guessing a pitch is coming — draining rotational power before the swing even begins.
- Pitch Count LimitBeginnerA pitch count limit is a maximum number of pitches a player is allowed to throw in a single game or appearance, set by league rules based on age, and usually paired with required rest days before pitching again.
- Pitch VelocityBeginnerPitch velocity is the speed of the ball at release, measured in miles per hour — the most commonly cited indicator of pitching power and arm strength.
- Pop-Up (Batting)BeginnerA pop-up is a batted ball with extreme backspin and a very steep launch angle (above 50°) that goes nearly straight up and is almost always caught for an out.
- Quality At-BatBeginnerA quality at-bat is a plate appearance judged by the process and competitiveness of the at-bat rather than only by the outcome — working a long count, hitting the ball hard, advancing a runner, or drawing a walk can all count even if the hitter didn't get a hit.
- RBI OpportunityBeginnerAn RBI opportunity is any plate appearance with a runner in scoring position (on second or third base) where the hitter has a realistic chance to drive in a run.
- Sacrifice BuntBeginnerA sacrifice bunt trades the batter's own out to advance a baserunner into scoring position. This uses the bunt purely as a situational strategy rather than an attempt to reach base safely.
- Sacrifice FlyBeginnerA sacrifice fly is a fly ball out, hit deep enough to the outfield. That allows a runner on third base to tag up and score after the catch. It does not count as an official at-bat and does not hurt the hitter's batting average.
- SlideBeginnerA slide is the controlled fall a baserunner uses to reach a base beneath a tag, to kill momentum at the bag, or to avoid a collision with the fielder covering it.
- Stride (Batting)BeginnerThe stride is the small forward step or toe-tap the hitter takes to trigger timing. It is a timing mechanism, not a source of power, and must be soft and directional.
- Strike ZoneBeginnerThe strike zone is the three-dimensional region over home plate, between the batter's knees and the midpoint of the torso, where a pitch must pass to be called a strike.
- Tag UpBeginnerTagging up means a baserunner returns to and touches their current base as a fly ball is caught, then takes off toward the next base — the legal method of advancing on a caught fly.
- Throwing MechanicsBeginnerThrowing mechanics are the sequence of arm and body movements used to deliver the ball accurately and with arm-safe velocity — applicable to every position on the field.
- Toe Tap Timing TriggerBeginnerA toe tap is a small, quiet lift and set of the front foot used as a timing trigger instead of a full stride. It gives the hitter a repeatable rhythm cue with a smaller moving part to keep on time.
- Travel BallBeginnerTravel ball is competitive youth baseball played for a club team outside the local everyday or school league, usually involving tournaments in multiple cities and a higher, more selective level of competition.
- Turn TwoBeginner"Turn two" is baseball slang for successfully executing a double play — recording two outs on a single batted ball, most commonly a ground ball fed to a middle infielder who pivots and relays to first base.
- Two-Strike Choke UpBeginnerChoking up with two strikes means moving the hands up the handle away from the knob, shortening the bat's effective length to gain quicker, more controllable swings at the cost of some raw power.
- Two-Way PlayerBeginnerA two-way player is someone who both pitches and plays a position (or hits regularly) at a competitive level, rather than specializing in one role.
- Windup vs. StretchBeginnerThe windup and the stretch are the two legal pitching positions — the full windup, used mainly with the bases empty for maximum power, and the stretch, a shorter, quicker delivery used with runners on to control the running game.
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