There are 2 main definitions of bikini in English:

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bikini1

Line breaks: bi¦kini
Pronunciation: /bɪˈkiːni
 
/

noun (plural bikinis)

A two-piece swimming costume for women: Karen put on a yellow sun dress over her bikini [as modifier]: a bikini top
More example sentences
  • It may be winter outside, but Marks & Spencer is hotting up with fantastic bikinis, swimsuits, tankinis and dresses to flatter all.
  • A lot of hardy Scots braved what were chilly conditions and sported swimming costumes and even bikinis.
  • Some of the great sparkling looks came in tiny swimsuits or two-piece bikinis studded with silver nail heads including crocheted white suits.

Origin

1940s: named after Bikini, where an atom bomb was exploded in 1946 (because of the supposed 'explosive' effect created by the garment).

More
  • In 1946 the USA exploded an atom bomb at Bikini, an atoll in the Marshall Islands in the western Pacific. Not long after, a scanty two-piece swimming costume caused a sensation on the beaches of France. Its effect was so great that the French called it the bikini. The word seems to have appeared first in English in a US newspaper, the Waterloo Daily Courier, on 26 June 1947. In an article on swimwear it reports: ‘The French, it seems, have a new suit planned that is about twice as wide as a piece of string. It's so explosive that they call it the Bikini.’

Definition of bikini in:

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There are 2 main definitions of bikini in English:

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Bikini2

Line breaks: Bi¦kini
Pronunciation: /bɪˈkiːni
 
/
An atoll in the Marshall Islands, in the western Pacific, used by the US between 1946 and 1958 as a site for testing nuclear weapons.

Definition of bikini in:

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