honest woman vs wife

honest woman and wife both are nouns.

Word	Noun	Adjective	Verb	Adverb
honest woman	Yes	No	No	No
wife	Yes	No	No	No

As nouns, wife is a hypernym of honest woman; that is, wife is a word with a broader meaning than honest woman:

honest woman: a wife who has married a man with whom she has been living for some time (especially if she is pregnant at the time)
wife: a married woman; a man's partner in marriage

Other hypernyms of honest woman include married woman.

honest woman (noun)	wife (noun)
a wife who has married a man with whom she has been living for some time (especially if she is pregnant at the time)	a married woman; a man's partner in marriage