chachka vs young lady

chachka and young lady both are nouns.

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

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

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

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