. . . . "make a copy of (a computer file) especially for storage in another place as a security copy; \"You'd better back up these files!\""@en-us . "01694620-v"^^ . "0"^^ . . "0"^^ . "back up"@en-us . "201646188"@en-us . "back up"^^ . . . . "201694620"^^ .