boilersuit vs boilers suit

boilersuit and boilers suit both are nouns.

Word	Noun	Adjective	Verb	Adverb
boilersuit	Yes	No	No	No
boilers suit	Yes	No	No	No

As nouns, boilersuit and boilers suit are synonyms defined as:

boilersuit and boilers suit: a loose protective coverall or smock worn over ordinary clothing for dirty work

Other synonyms of boilersuit include overall.

boilersuit (noun)	boilers suit (noun)
a loose protective coverall or smock worn over ordinary clothing for dirty work	a loose protective coverall or smock worn over ordinary clothing for dirty work