sweat suit vs sweatsuit

sweat suit and sweatsuit both are nouns.

Word	Noun	Adjective	Verb	Adverb
sweat suit	Yes	No	No	No
sweatsuit	Yes	No	No	No

As nouns, sweat suit and sweatsuit are synonyms defined as:

sweat suit and sweatsuit: garment consisting of sweat pants and a sweatshirt

Other synonyms of sweat suit include sweats, workout suit.

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