playsuit

plural playsuits

1. A one-piece stretch garment worn by very young children.

   Like Marsha, his hair was tinged a faint rusty red. Sound asleep in a chair in the corner was a small girl, perhaps three, in a rumpled playsuit.

   c. 1950, Philip K. Dick, Voices From the Street, published 2007, →ISBN

2. A one-piece item of clothing for women.

   The playsuit combines shorts, a skirt, and a backless bodice.

   2010, Mary Beth Klatt, Chicago's Fashion History: 1865–1945, →ISBN

   1 more example

   To some, the very word "playsuit", with its frolicsome associations, will induce the conviction that this is not an item of clothing to be seen alive in. But playsuits are the natural second stage of the shorts revolution.

   2007 May 10, “Pick of the week - playsuits”, in The Guardian

3. A one-piece undergarment for women.