lollipop woman vs woman

lollipop woman and woman both are nouns.

Word	Noun	Adjective	Verb	Adverb
lollipop woman	Yes	No	No	No
woman	Yes	No	No	No

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

lollipop woman: a woman hired to help children cross a road safely near a school
woman: an adult female person (as opposed to a man)

Other hypernyms of lollipop woman include crossing guard, adult female.

lollipop woman (noun)	woman (noun)
a woman hired to help children cross a road safely near a school	women as a class
	an adult female person (as opposed to a man)
	a female person who plays a significant role (wife or mistress or girlfriend) in the life of a particular man