onside

from WordNet (r) 3.0 (2006)
onside
    adj 1: not offside; being within the prescribed area of play
           [ant: {offside}, {offsides}]
    
from The Collaborative International Dictionary of English v.0.48
onside \onside\ adj. (Sports)
   Not offside; being within the prescribed area of play.
   {offside}
   [WordNet 1.5]
    

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