1) Boilers suit 2) Coverall 3) One-piece overall 4) Overall 5) Safety clothing 6) What Stew is wearing 1) Overall 
A boilersuit is a loose fitting garment covering the whole body except for the head, hands and feet. The 1989 issue 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 an overall in some places, but that word is more usually understood as a bib-and-brace ...
boilers suit noun a loose protective coverall or smock worn over ordinary clothing for dirty work