Backhand: A shot or pass that is thrown backward.

Ball Under: A foul that is called on a player who takes or holds the ball underwater while being tackled by an opponent.

Brutality: A foul called for rough or dangerous play such as elbowing, punching or otherwise intending to injure an opponent or official.

Bunny: A hard shot aimed at or near the goalie's head, which results in a goal; also called a "donut."

Centre-Back: A defensive player whose main job is to defend against the opposing centre-forward.

Centre-Forward: The main attacking player who is positioned in front of the opponent's goal between the two-metre and four-metre lines. Also known as the "hole man," "hole set" or "two-metre man."

Corner throw: A free throw awarded to the offensive team when a defensive player touches the ball last before it goes over the goal line, outside the goal itself. Taken at the side wall at the two-metre line.

Donut: A hard shot aimed at or near the goalie's head, which results in a goal. Also called a "bunny."

Dribble: To swim with the ball.

Drive: When a player without the ball swims quickly to the front of the opposing goal.

Drop: A defensive strategy in which players protect the centre of the pool and attempt to block the shots on goal.

Dry pass: A pass that can be caught above the water.

Eggbeater: A leg kick used by players to raise themselves vertically and tread water at the same time.

Exclusion Area: The area to which offending players are sent for serious fouls for 20 seconds unless their team is scored upon.

Exclusion foul: A foul that results in the offending player being sent to the exclusion area. These include: interfering with a corner throw, free throw or goal throw; holding or pulling an opponent who isn't holding the ball; intentionally striking or splashing an opponent.

Four-metre foul: A foul by a defensive player attempting to prevent a goal in the four-metre area. This results in a penalty throw for the opposing team.

Goal line: An imaginary line across the pool, at the mouth of the goal, marked by white buoys.

Half-distance line: An imaginary line marked by white buoys that divides the playing area in half.

Hole guard: A defensive player who is positioned in front of the net and guards the opposing centre-forward.

Lane press: A defensive strategy in which players block the opponent's passing lanes by positioning themselves between the ball and the players they are guarding.

Man-down: Similar to a short-handed situation in hockey, when a team plays with one less player for 20 seconds or less because of a foul.

Moving pick: Similar to a pick in basketball, where an offensive player runs interference for a teammate, allowing him to pass or shoot the ball.

Penalty throw: A throw taken by an offensive player from the four-metre line with only the goalkeeper defending. Awarded when a defending player commits a foul inside the four-metre line.

Point: The offensive spot located furthest from the goal at the 12 o'clock position.

Seven-metre line: An imaginary line across the pool, marked by green buoys, located seven metres from each goal.

Sink: Pushing an opponent underwater during a tackle.

Stalling: Failure to shoot or advance the ball within 35 seconds of gaining possession, resulting in loss of possession.

Swim-off: The race at the start of the game in which players swim for the ball in the centre of the pool.

Two-metre line: An imaginary line across the pool, indicated by red buoys located two metres from each goal.