†(a) an actor's costume (obsolete rare); (b) a child's casual outfit; (c) a two-piece women's leisure outfit consisting of a top and a pair of shorts.

Originally U.S. Usually in plural. A one-piece garment covering the trunk and all or part of the legs, worn esp. as a playsuit by a young child…

= senses 2a, 2b.

attributive and in other combinations, as diving-bladder, diving-boat, diving-engine, diving-helmet, diving-machine, diving-suit, diving-bell, n.…

North American. A baby's sleeping bag or one-piece garment without leg openings, often with an attached hood. Also more fully bunting bag.

U.S. slang. A fur-lined high-altitude flying suit. Frequently attributive.

A close-fitting one-piece garment worn by acrobats and dancers; a similar fashion garment.

In full Sidcot (flying) suit. A warm one-piece suit worn by aviators or the like (see quot. 1969).

Miscellaneous uses. A sleeping-suit for a baby or a small child. Also plural. Originally North American.

Originally U.S. Usually in plural. An item of clothing of related design worn by adults: spec. (a) a fashionable, loose-fitting woman's garment…

an all-body garment that can be made airtight and inflated to protect the wearer against low ambient pressure (as in high-altitude flight).

an outer garment combining overalls and shirt, worn to protect clothing.

A tight-fitting, usually one-piece, swimsuit.

In Spain: a boiler suit; workman's overalls, esp. as worn by the Republican militia during the Spanish Civil War.

Originally and chiefly U.S. Usually in plural, as footies. Each of the (detachable) foot pieces attached to an all-in-one-garment such as a romper…

A garment made or consisting of a single piece; esp. one which takes the place of two or more separate garments; (originally) a one-piece…

a one-piece costume resembling overalls or a boiler-suit, originally designed for wear by women in air-raid shelters; later, worn by either sex, and…

(see quot. 1943).

Designed to counteract the effects of high acceleration; anti-g suit, = G-suit, n.

A garment designed to enable a person to withstand high accelerations; also, a similar garment used in surgical operations. Cf. anti-g, adj.

a parachutist's one-piece garment; also, a similar garment worn by other people.

a garment designed to give the wearer buoyancy when in the water and to provide insulation from the cold.

a spacesuit as worn by astronauts on the moon; also in extended use.

A one-piece garment providing protection for the whole body against the cold, wet, etc.

a type of diving suit, usually made of sheet rubber, which uses the principle of air-insulation to protect the diver from cold, and under which warm…

a suit, usually of rubber, worn by divers, surfers, etc., to protect them from the cold.

Originally U.S. A one-piece (stretch) garment worn by a baby or young child, usually as nightwear. Cf. Babygro, n. Now the usual sense.

A proprietary name for: a one-piece stretch garment for a baby. Cf. onesie, n. 2, romper, n. 2a.

a (ladies') one-piece bathing-suit with scooped neck (cf. maillot, n. 2).

an all-in-one garment reaching from neck to feet, generally tight-fitting, and with trouser legs.

(a) a man's formal evening wear; a black dinner jacket worn with a white shirt; (b) a type of suit worn by astronauts.

A tight-fitting one-piece garment of stretchable fabric which covers the body from neck to feet, worn by gymnasts, dancers, and as a fashion…

a close-fitting one-piece garment covering the torso (and sometimes the legs), esp. a women's garment resembling a leotard and often worn as…

Frequently plural. A child's one-piece suit with short sleeves and short trouser legs.

colloquial. A wetsuit.