garmentmaker vs dressmaker

garmentmaker and dressmaker both are nouns.

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

As nouns, garmentmaker and dressmaker are synonyms defined as:

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

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