modiste vs garment worker

modiste and garment worker both are nouns.

Word	Noun	Adjective	Verb	Adverb
modiste	Yes	No	No	No
garment worker	Yes	No	No	No

As nouns, garment worker is a hypernym of modiste; that is, garment worker is a word with a broader meaning than modiste:

Other hypernyms of modiste include dressmaker, garment-worker, garmentmaker, adult female, woman.

modiste (noun)	garment worker (noun)
a woman who makes or mends dresses	a person who makes garments
someone who makes and sells hats