Word: watchword
Part of speech: Noun
Syllables: watch
word
Definition: A prearranged reply to the challenge of a sentry or a guard; a password or signal by which friends can be known from enemies.
Morphemes:
Affix: watch
Language: en
Meaning: guard, sentinel, sentry
Affix: word
Language: en
PoS: Noun
Meaning: A promise; an oath or guarantee.