Sports Illegally ahead of the ball or puck in the attacking zone.
Football Illegally beyond the line of scrimmage when the ball is snapped or ahead of the ball when the ball is kicked on a kickoff.
Sports An offside motion or play.
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.