What does boilersuit mean?
A boilersuit is a loose-fitting, one-piece work garment that combines a jacket and trousers, usually fastened down the front and often made of hard-wearing cotton drill or similar fabric. It is designed to be worn over everyday clothes, protecting them from oil, paint, dust, and grime during manual tasks such as vehicle repair, engineering, painting, and industrial maintenance. The word is used chiefly in British English, where it is the standard name for this garment; American usage more often calls the same item 'coveralls.' The name derives literally from the occupation of its earliest wearers — workers who tended the boilers of ships and locomotives in the early twentieth century — which gives the word a distinctly industrial heritage. Today the term carries practical, unpretentious associations, though boilersuits have also appeared in fashion and costume contexts, from mechanics' overalls to the iconic orange suits of prison dramas.
nounA loose-fitting, one-piece garment combining jacket and trousers, worn over ordinary clothes to protect them while working, especially in manual or industrial jobs.
- A one-piece protective work garment covering both torso and legs, typically fastened down the front.
"He pulled on his boilersuit and headed into the workshop."
"The mechanic wiped her hands on her grease-stained boilersuit."
"Volunteers in white boilersuits spent the morning clearing debris from the beach."
Regular plural formation; no irregularities.
"The factory issued fresh boilersuits to all the new apprentices."
The name comes straight from the job: it was first worn by workers tending steam locomotive and ship boilers, whose sooty work demanded clothing they could throw over everything else.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of boilersuit
The word 'boilersuit' is a compound of 'boiler' and 'suit,' coined in early twentieth-century Britain for the all-in-one garments worn by stokers and fitters who worked on steam boilers aboard ships and locomotives. As the garment spread beyond boiler rooms into general industrial and mechanical work, the name stuck, becoming the standard British label for the one-piece overall-style workwear also known in America as 'coveralls.' Its roots are therefore occupational rather than linguistic: the word shares its base with related trade terms such as 'boilermaker' and 'boilerplate.'
How boilersuit is actually used
Chiefly British; American English more commonly uses 'coveralls' for the same garment. The term is neutral in register and strongly associated with manual trades, engineering, and maintenance work, giving it a practical, unpretentious connotation.
Easily confused with boilersuit
A jumpsuit is a fashion garment worn as an outfit in its own right, whereas a boilersuit is a utilitarian garment worn over other clothes to protect them during work.
Coveralls is the standard American term for essentially the same work garment that the British call a boilersuit.