dressmaker vs garmentmaker

dressmaker and garmentmaker both are nouns.

Word	Noun	Adjective	Verb	Adverb
dressmaker	Yes	No	No	No
garmentmaker	Yes	No	No	No

As nouns, dressmaker and garmentmaker are synonyms defined as:

Other synonyms of dressmaker include garment-worker, garment worker.

dressmaker (noun)	garmentmaker (noun)
a person who makes garments	a person who makes garments