The main difference between Coverall and Overall is that the Coverall is a loose-fitting protective suit and Overall is a trousers with attached bib and shoulder straps.
A boilersuit is a loose fitting garment covering the whole body except for the head, hands and feet. The 1989 edition of the Oxford English Dictionary lists the word boilersuit first on 28 October 1928 in the Sunday Express newspaper. The garment is also known as coveralls in North America, or as an overall (or “overalls”) elsewhere, especially in the UK; in North America “overall” is more usually understood as a bib-and-brace overall, which is a type of trousers with attached suspenders. A more tight-fitting garment that is otherwise similar to a boilersuit is usually called a jumpsuit. The “siren suit” favoured by Winston Churchill (but also worn by many others in the UK when air raids were a threat) during the Second World War was closely similar to a boilersuit.
An overall, also called overalls, bib-and-brace overalls, or dungarees, is a type of garment which is usually used as protective clothing when working. Some people call an overall a “pair of overalls” by analogy with “pair of trousers”.
Overalls were originally made of denim (cotton), but they can also be made of corduroy and khaki. Overalls were invented in the 1890s by Levi Strauss and Jacob Davis (Levi Strauss & Co.), but they went through an evolution to reach their modern form. Initially only used for protective clothing in work settings, they have become a garment of high fashion as “potential cult items”
A loose-fitting protective garment worn over other clothing.
All-encompassing, all around.
Generally; with everything considered.
A garment worn over other clothing to protect it; a coverall or boiler suit. A garment, for manual labor or for casual wear, often made of a single piece of fabric, with long legs and a bib upper, supported from the shoulders with straps, and having several large pockets and loops for carrying tools.
A garment, worn for manual labor, with an integral covering extending to the chest, supported by straps.
“a coverall term”
a one-piece protective garment worn for heavy manual work; a boiler suit.
taking everything into account
“the governors and head have overall responsibility for managing the school”
“the overall effect is impressive”
taken as a whole; in all
“overall, 10,000 jobs will go”
a loose-fitting coat or one-piece garment worn over ordinary clothes for protection against dirt or heavy wear
“a pair of overalls”
“men in grubby blue overalls”
close-fitting trousers formerly worn as part of an army uniform, now only on ceremonial or formal occasions.