Love means zero in tennis scoring. Its exact origin is uncertain, despite popular stories connecting it to the French word for egg because an egg resembles a zero.
A golf handicap is a numerical measure of a player’s demonstrated ability that helps players of different skill levels compete on a more even basis.
A birdie is one stroke under par on a hole, an eagle is two under, and a bogey is one over. Par is the benchmark score assigned to the hole.
A libero is a back-row defensive specialist who wears a contrasting jersey and can replace certain teammates under special substitution rules.
A player is in an offside position when nearer the opponents’ goal line than both the ball and the second-last opponent, but an offense occurs only if that player then becomes involved in active play.
LBW means leg before wicket. A batter can be out when the body illegally prevents a legal delivery that would otherwise have hit the wicket, subject to several conditions.
Stoppage time is added to the end of each half to replace time lost during play. Extra time is an additional period used in some knockout matches that are tied after regulation.
A scrum is a structured restart in rugby union in which eight forwards from each team bind together and compete for possession after the ball is fed into the tunnel.
A false start occurs when an offensive player makes a prohibited movement that simulates the start of the play before the snap.
The official marathon distance is 42.195 kilometers, about 26.2 miles. It was standardized after early Olympic marathons varied in length.