- A word given to sentinels, and to such as have occasion
to visit the guards, used as a signal by which a friend is known from
an enemy, or a person who has a right to pass the watch from one who
has not; a countersign; a password. - A sentiment or motto; esp., one used as a rallying cry
or a signal for action.
Meaning of 'watchword' (Princeton's WordNet)
1 . watchword
[ n]
Meaning (1): - a slogan used to rally support for a cause
Example in sentence:
a cry to arms;
our watchword will be `democracy'
Meaning (2): - a secret word or phrase known only to a restricted group