Noun
(soccer) The prohibition of teammates closer to the opponents' goal than the person kicking or throwing the ball unless there are three opponents at least as close to their goal line.
(traffic engineering) A system that gives right-of-way at an intersection to traffic approaching from the side on which one is not driving.
(programming) In some programming languages, the convention by which the indentation of a line of source code affects its meaning.
Source: en.wiktionary.org