workout suit vs sweats

workout suit and sweats both are nouns.

Word	Noun	Adjective	Verb	Adverb
workout suit	Yes	No	No	No
sweats	Yes	No	No	No

As nouns, workout suit and sweats are synonyms defined as:

workout suit and sweats: garment consisting of sweat pants and a sweatshirt

Other synonyms of workout suit include sweat suit, sweatsuit.

workout suit (noun)	sweats (noun)
garment consisting of sweat pants and a sweatshirt	garment consisting of sweat pants and a sweatshirt