n (software) A feature, definition, or coding that enables future enhancements to happen compatibly or more easily.
n (golf) A golf shot that (for the right-handed player) curves unintentionally to the left. See draw, slice, fade
n (basketball) A basketball shot in which the offensive player, usually turned perpendicular to the basket, gently throws the ball with a sweeping motion of his arm in an upward arc with a follow-through which ends over his head. Also called hook shot.
n (boxing) A type of punch delivered with the arm rigid and partially bent and the fist travelling nearly horizontally mesially along an arc.