/woch"werrd'/ , n.
1. a word or short phrase to be communicated, on challenge, to a sentinel or guard; password or countersign.
2. a word or phrase expressive of a principle or rule of action; slogan: Conservation has been our watchword.
3. a rallying cry of a party, club, team, etc.
[ 1350-1400; ME; see WATCH, WORD ]
Syn. 1, 2. shibboleth. 3. motto.