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cossie

American  
[koz-ee] / ˈkɒz i /

noun

Australian Informal.
  1. a bathing suit; bathers.


cossie British  
/ ˈkɒzɪ /

noun

  1. an informal name for a swimming costume

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of cossie

1915–20; ( swimming ) cos(tume) + -ie

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

I’ve attached further examples of all the times I’ve lived my best life whilst rocking a cossie.

From BBC

But did we really need to see her cossie in the trailer?

From The Guardian

Other than that you'll need a cossie or some Speedos.

From The Guardian

Having swum 1500m in the Serpentine, cycled 43km round Hyde Park in a wet cossie and run till she dropped for 10km, she had been denied a share of gold by what seemed like a dodgy art critic's appraisal of that photo-finish.

From The Guardian

If you're a complete beginner then, after picking up goggles and a cossie, you might want to invest in lessons.

From The Guardian