offside

Từ điển WordNet v3.1 - WordNet Dictionary

I - noun

(sport) the mistake of occupying an illegal position on the playing field (in football, soccer, ice hockey, field hockey, etc.)
• Topics:
sport, athletics
• Hypernyms:
mistake, error, fault

II - 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
• Syn:
offsides
• Ant:
onside
• Topics:
sport, athletics

III - adverb

illegally in advance of the ball or puck