Tennis Glossary
Learn the language of Tennis — answer-first definitions with real examples, beginner to pro.
135 terms
- Kinetic Chain BreakdownIntermediateA kinetic chain breakdown happens when the ground-up sequence of leg, hip, torso, and arm rotation is interrupted or skipped. This forces the arm to generate power on its own instead of receiving it from the body.
- Late Contact (Tennis)IntermediateLate contact means the racquet meets the ball behind the ideal contact point. This means usually behind the front hip. This means which robs the shot of pace, direction control, and spin.
- Late Split StepIntermediateA late split step lands after the opponent has already struck the ball, meaning the player is still airborne or resettling exactly when they need to be pushing off toward the shot.
- Leg Drive on GroundstrokesIntermediateLeg drive is the push off the ground during a groundstroke that initiates the kinetic chain, converting ground reaction force into upward and rotational energy that feeds into the hips, torso, and arm.
- Let (Serve Rule)BeginnerA let is called when a serve clips the net cord and still lands in the correct service box. This requires the point to be replayed with no penalty to the server.
- LobIntermediateA lob is a high, arcing shot designed to clear a net player's reach, either buying time defensively or winning the point offensively with a topspin arc that lands near the baseline.
- Lob DefenseBeginnerLob defense is using a high, deep shot over an approaching or net-positioned opponent to buy time, reset the point, or force a difficult overhead.
- Long Backswing Timing IssueIntermediateA long backswing timing issue occurs when the backswing takes longer to complete than the ball allows. This forces a rushed or unfinished forward swing regardless of how clean the backswing shape looks in isolation.
- Loop BackswingIntermediateA loop backswing takes the racquet back and up before dropping it down into the forward swing. This uses the circular path to build racquet-head speed and rhythm.
- Loss of Balance on Stretch ShotsIntermediateLoss of balance on stretch shots happens when a wide, low, or hard-hit ball forces a player to reach beyond a stable base. This causes the center of mass to fall away from the shot at contact.
- Match Tiebreak (10-Point)BeginnerA match tiebreak (or "super tiebreak") is a first-to-10-points breaker, won by two clear points, played instead of a full third set in many doubles and some singles formats.
- Mis-Hit CausesBeginnerMis-hit causes fall into a small number of root categories. This means contact-point timing, footwork spacing, balance, and grip mismatch. This means and identifying which one applies is the fastest way to fix repeated mis-hits.
- Momentum Shift in a MatchAdvancedA momentum shift is a noticeable change in which player is controlling the flow of a match, often triggered by a break of serve, a long game won on key points, or a run of consecutive games.
- Moon BallIntermediateA moon ball is a very high, heavily topspun groundstroke hit well above net height to disrupt an opponent's rhythm and buy recovery time without going as high or defensive as a full lob.
- Movement PatternIntermediateA movement pattern is the sequence of footwork steps a player uses to reach the ball, execute the shot, and recover to position. This means combining split step, approach steps, stance, and recovery.
- Natural Gut StringAdvancedNatural gut string is made from cow intestine and offers the highest elasticity, best tension retention, and greatest comfort of any string material, at a significant cost and durability trade-off.
- Net Approach TimingIntermediateNet approach timing is when a player moves forward to the net relative to their own shot and the opponent's reply, aiming to split step just as the opponent makes contact.
- Neutral Rally BallBeginnerA neutral rally ball is a moderate-pace, high-margin shot hit deep and crosscourt to maintain a rally without taking risk or conceding the point's initiative.
- No-Ad Scoring (Deciding Point)BeginnerNo-ad scoring replaces deuce and advantage with a single deciding point at 40-40, so the next point played wins the game outright.
- One-Handed BackhandIntermediateA one-handed backhand is struck with only the dominant hand on the grip, offering greater reach and disguise than a two-hander at the cost of stability against high-bouncing pace.
- Open StanceIntermediateAn open stance positions both feet roughly parallel to the baseline at contact. This allows the hips to rotate powerfully through the ball without requiring a weight transfer step.
- Open-Stance ForehandIntermediateAn open-stance forehand is hit with the front foot and hips facing the sideline rather than the net. This allows hip rotation to generate power without a full weight transfer forward.
- Overhead / SmashIntermediateThe overhead (or smash) is a serve-like stroke struck above the head to put away a lob, demanding quick shoulder turn, a trophy-position racquet path, and aggressive pronation through contact.
- Overhead Smash FootworkIntermediateOverhead smash footwork is the pattern of small adjustment steps and a final scissor or step-in motion that positions a player under a lob to hit it with full power and balance.
- Passing ShotIntermediateA passing shot is hit by the baseline player when the opponent has approached the net, aiming to place the ball past the net player through an angle or pace that cannot be volleyed.
- Poaching (Doubles)IntermediatePoaching is when the net player in doubles crosses over to intercept a return or rally ball meant for their partner, cutting off the angle and finishing the point at the net.
- Polyester StringIntermediatePolyester string is a stiff, low-elasticity monofilament string that provides superior spin potential and durability but transmits more shock to the arm compared to natural gut or multifilament strings.
- Pronation on ServeAdvancedPronation on serve is the natural inward rotation of the forearm just before and through contact. This squares the racquet face to the ball and adds a final burst of racquet-head speed. This means the largest single contributor to that speed is the shoulder's internal rotation.
- RA / StiffnessProRA is a racquet's stiffness measured by how much the frame deflects under load. Higher RA (66+) means a stiffer, more powerful but harsher frame; lower RA (under 58) flexes more for feel and arm comfort.
- Racquet DropAdvancedThe racquet drop is the passive falling of the racquet head below the wrist after the unit turn. This creates the low position from which an accelerating, low-to-high swing whips topspin onto the ball.
- Racquet Face Angle at ContactIntermediateRacquet face angle at contact is the tilt of the string bed relative to vertical at the instant the ball is struck. It is the primary factor determining the ball's launch direction and spin type.
- Racquet Head SpeedIntermediateRacquet head speed is how fast the racquet head is traveling at the moment of contact. It is the single largest determinant of ball pace and spin on a given stroke.
- Rally LengthBeginnerRally length is the number of shots in a point from serve to finish, a tactical metric that reveals whether a player wins most points early (0–4 shots), in mid-length rallies (5–8), or in extended exchanges (9+).
- Rally ToleranceIntermediateRally tolerance is a player's ability and willingness to sustain longer point exchanges without forcing a low-percentage shot, reflected in average rally length and shot patience under pressure.
- Recovery StepIntermediateThe recovery step is the movement made immediately after hitting a shot to reposition at the optimal defensive or offensive base before the opponent's next ball.
- Recovery to Center CourtIntermediateRecovery to center court is the movement back toward a balanced base position after hitting a shot, positioned to cover the widest possible range of the opponent's likely replies.
- Return of Serve PositioningIntermediateReturn of serve positioning is where a returner stands before the serve. This means how far behind the baseline and how far side to side. This means set to counter the server's pace, spin, and typical patterns.
- Rushing the Split StepIntermediateRushing the split step means landing from the hop too early, before the opponent has actually struck the ball. This leaves the player flat-footed and unable to react to the true direction of the shot.
- Second ServeIntermediateThe second serve is the follow-up attempt after a fault. This requires enough spin and margin to give the serve a wide safety margin. At the same time, still limiting the returner's options.
- Second Serve SpinIntermediateSecond serve spin is the extra rotation a player adds to the follow-up delivery to raise net clearance and margin for error after a miss.
- Semi-Continental Grip (Volley)BeginnerThe semi-continental sits between a full continental and an eastern forehand, used by some players at net to balance the two volley wings without moving the hand.
- Semi-Western GripBeginnerThe semi-western (base knuckle on bevel 4) is the most popular modern forehand hold, balancing topspin capability with comfortable contact across a wide range of ball heights.
- Serve and VolleyAdvancedServe and volley is a tactical pattern in which the server rushes to the net immediately after delivering the serve, intending to end the point with a first or second volley.
- Serve RoutineBeginnerA serve routine is the consistent pre-serve sequence. This means bouncing the ball, breathing, positioning the feet. This means that helps players enter a calm, focused state before every delivery.
- Serve Toss PlacementBeginnerServe toss placement is where the ball is released relative to the body. It determines which serve types are physically possible to hit from that toss.
- Serve-Plus-One PatternIntermediateServe-plus-one is a tactical pattern where the server plans the first shot after the serve before the point starts. This uses the serve to set up a predictable, attackable ball.
- Shanking the Ball (Tennis)BeginnerA shank happens when the ball contacts the racquet near the throat or the edge of the frame instead of the string bed. This sends it off in an hard to predict, often sharply angled direction.
- Short Backswing CompensationIntermediateShort backswing compensation is when a player shortens the backswing under time pressure to force contact, sacrificing racquet-head speed and stored energy to keep the swing "on time."
- Shot SelectionIntermediateShot selection is the real-time tactical decision of which shot type, direction, pace, and spin to use on each ball, based on court position, ball height, opponent location, and score situation.
- Sidestep / ShuffleBeginnerA sidestep or shuffle keeps the player facing the net. At the same time, moving laterally, maintaining balance and readiness to load for a groundstroke without crossing the feet.
- SliceBeginnerIn tennis, a slice is a shot hit with backspin by swinging high-to-low through the ball, producing a low, skidding bounce. (This differs from a golf slice, which is a curving mishit.)
- Slice ServeIntermediateA slice serve applies sidespin by brushing around the outside of the ball. This causes it to curve away from a right-handed server's deuce-side opponent and stay low after the bounce.
- Split StepBeginnerA split step is a small hop timed to the moment your opponent strikes the ball. It primes your legs to push off explosively in any direction.
- Straight-Arm ForehandAdvancedA straight-arm forehand keeps the hitting arm extended through the forward swing rather than bent at the elbow. This uses the longer lever to generate additional racquet-head speed from body rotation.
- Straight-Back BackswingBeginnerA straight-back backswing takes the racquet directly back on a flat, linear path rather than looping up and over, favoring simplicity and timing control over generated racquet-head speed.
- String GaugeAdvancedString gauge is the thickness of a tennis string measured in millimetres or gauge numbers, with thinner strings providing more spin and feel and thicker strings offering greater durability.
- String TensionIntermediateString tension is the tightness at which strings are pulled through the racquet frame, measured in pounds or kilograms, influencing the trampoline effect, control, and power of the string bed.
- SwingweightProSwingweight measures how heavy a racquet feels when swung, accounting for where its mass is distributed. Higher swingweight gives more plow-through and power but is harder to maneuver.
- T-ServeIntermediateA T-serve is aimed at the center service line, using the shortest distance to travel for speed and taking away the returner's easiest angles.
- Tiebreak StrategyAdvancedTiebreak strategy covers the tactical adjustments players make in a tiebreak's compressed, high-pressure points, including serve selection, return aggression, and side-switch pacing.
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