"(football) a back on the offensive team (a fullback or halfback) who tries to advance the ball by carrying it on plays from the line of scrimmage"@en-us . . . . . . "0"^^ . . "109856021"@en-us . "110543161"^^ . "0"^^ . "running back"^^ . . "10543161-n"^^ . . . . . "running back"@en-us .