bimbo vs young woman

bimbo and young woman both are nouns.

Word	Noun	Adjective	Verb	Adverb
bimbo	Yes	No	No	No
young woman	Yes	No	No	No

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

Other hypernyms of bimbo include fille, girl, miss, missy, young lady.

bimbo (noun)	young woman (noun)
a young woman indulged by rich and powerful older men	a young female