camp follower vs fancy woman

camp follower and fancy woman both are nouns.

Word	Noun	Adjective	Verb	Adverb
camp follower	Yes	No	No	No
fancy woman	Yes	No	No	No

As nouns, fancy woman is a hypernym of camp follower; that is, fancy woman is a word with a broader meaning than camp follower:

camp follower (noun)	fancy woman (noun)
a follower who is not a member of an ingroup	an adulterous woman; a woman who has an ongoing extramarital sexual relationship with a man
a prostitute who provides service to military personnel	a woman who engages in sexual intercourse for money