noun Football.

a player on defense who takes a position close behind the linemen.
the position played by this player.

Origin of linebacker

First recorded in 1960–65; line1 + backer Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for linebacker

Contemporary Examples of linebacker

British Dictionary definitions for linebacker



a defensive player in American or Canadian football who is positioned just behind the line of scrimmage
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