1. the area behind the line of scrimmage in football where the quarterback and running backs are positioned
Usage: American football
2. the players positioned in the backfield, especially the quarterback and running backs
Usage: American football

Examples

• The quarterback dropped back into the backfield to throw a pass.
• The team’s backfield includes two talented running backs.
• He broke through the defensive line and reached the backfield.
• The coach praised the backfield for their excellent performance.
• A blitz forced pressure into the backfield quickly.
• The backfield was crowded with multiple receivers running routes.