[on-sahyd, awn-]

adjective, adverb Sports.

not offside; being within the prescribed line or area at the beginning of or during play or a play.

Origin of onside

First recorded in 1840–50; on + side1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for onside

Contemporary Examples of onside

Historical Examples of onside

  • Onside kicks,” came suddenly from Sid, who had been somewhat quiet.

    The Winning Touchdown

    Lester Chadwick

British Dictionary definitions for onside


adjective, adverb

sport (of a player) in a legal position, as when behind the ball or with a required number of opponents between oneself and the opposing team's goal line


taking one's part or side; working towards the same goal (esp in the phrase get someone onside)Compare offside
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012