swimsuit , also: swimming suit
swimming costume BrE , also: bathing costume BrE informal
bathing suit AmE , also: bathers AusE

A suit of steel chain-mail isn't the best swimming costume in the world, I noticed.

If you want to enjoy the water park, be sure to bring a swimming costume.

My swimming costume had tried to insert itself into my womanhood.

I pull on my swimming costume, leaving shoes behind, picking up a towel.

Instead, there were these huge men in old-fashioned leotard-like swimming costumes.

He always got turned on by the sight of her in a wet swimming costume.

As this goal had been reached, Fearne wore a black and white striped swimming costume.

The night before we had read our guidebooks, which all said no swimming costumes were allowed.

We stripped to our swimming costumes and waded in.

I couldn't wear a swimming costume or any low-cut top.