chachka vs young woman

chachka and young woman both are nouns.

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

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

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

chachka (noun)	young woman (noun)
(Yiddish) an inexpensive showy trinket	a young female
(Yiddish) an attractive, unconventional woman