polonaise vs frock

polonaise and frock both are nouns.

Word	Noun	Adjective	Verb	Adverb
polonaise	Yes	No	No	No
frock	Yes	No	Yes	No

As nouns, frock is a hypernym of polonaise; that is, frock is a word with a broader meaning than polonaise:

polonaise: a woman's dress with a tight bodice and an overskirt drawn back to reveal a colorful underskirt
frock: a one-piece garment for a woman; has skirt and bodice

Other hypernyms of polonaise include dress.

polonaise (noun)	frock (noun)
a woman's dress with a tight bodice and an overskirt drawn back to reveal a colorful underskirt	a one-piece garment for a woman; has skirt and bodice
	a habit worn by clerics
	a long, loose outer garment

polonaise (verb)	frock (verb)
	put a frock on