OFFSIDE
offside, offsides
(adjective) illegally beyond a prescribed line or area or ahead of the ball or puck; “the touchdown was nullified because the left tackle was offside”
offside
(adverb) illegally in advance of the ball or puck
offside
(noun) (sport) the mistake of occupying an illegal position on the playing field (in football, soccer, ice hockey, field hockey, etc.)
Source: WordNet® 3.1
Adjective
offside (comparative more offside, superlative most offside)
(sports) In an illegal position ahead of the ball, puck, etc.
(US) To the side of the road, past the curb and sidewalk, e.g. an offside diner (restaurant.)
(bridge) Unfavourably located, from the point of view of the player taking a finesse.
To the side of a boat, opposite the primary side on which one paddles.
Usage notes
• Precise usage varies between sports; offside is used more in association football, while offsides is (perhaps erroneously) used by some in American football.
Noun
offside (plural offsides)
(sports) An offside play.
(British, AU) The side of a road vehicle furthest from the kerb: the right side if one drives on the left of the road.
The right-hand side of a working animal such as a horse or bullock, especially when in harness.
(British, of a canal) The side opposite the towpath.
Antonyms
• (road vehicle): nearside
Anagrams
• die-offs, dieoffs, dies off
Source: Wiktionary