offside

/ɑfˈsaɪd/

/ɒfˈsaɪd/

Other forms: offsides; offsider

Definitions of offside

1. noun

   (sport) the mistake of occupying an illegal position on the playing field (in football, soccer, ice hockey, field hockey, etc.)
   type of:

   error, fault, mistake

   a wrong action attributable to bad judgment or ignorance or inattention
2. 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”

   synonyms: offsides

   antonyms:

   onside

   not offside; being within the prescribed area of play
3. adverb

   illegally in advance of the ball or puck