boilers suit vs boilersuit

boilers suit and boilersuit both are nouns.

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

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

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

Other synonyms of boilers suit include overall.

boilers suit (noun)	boilersuit (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