board break ground cast away cast loose cast off cat the anchor detach disengage doff drop the mooring embark embus emplane enplane entrain free go aboard go on board go on shipboard liberate loose loose for sea loosen put to sea release remove take off take ship unbar unbind unbolt unbuckle unbutton unchain unclasp undo unfasten unfetter unglue unlace unlatch unleash unlock unloose unloosen unmoor unstick unstrap untie up-anchor