. "(football) a person who plays in the backfield"@en-us . "back"@en-us . "(football) a person who plays in the backfield"@en-us . . "back"^^ . . . "0"^^ . . . . . "109830194"^^ . "109203451"@en-us . . "09830194-n"^^ . . . "0"^^ .