1. A player in football or rugby who plays in the backfield, typically behind the line of scrimmage or line of play.
Usage: Common in American football and rugby contexts; Refers to defensive or offensive positions depending on the sport

Examples

• The backfielder intercepted the pass near the end zone.
• In rugby, the backfielders are responsible for running with the ball and creating scoring opportunities.
• The defensive backfielder lined up ten yards behind the line of scrimmage.
• Our team's best backfielder made three tackles in the first half.
• The backfielders executed the play perfectly, moving the ball downfield for a touchdown.