noun
bikini
bih-KEE-nee
noun
1
A minimal two-piece swimsuit that leaves the midriff bare.
"She packed three bikinis for the beach trip."
2
Brief underwear or bottoms cut low at the hip with high leg openings.
"He prefers bikini briefs over boxers."
How to Use Bikini
Learner’s notesIn plain EnglishA two-piece swimsuit, or underwear cut in a similar minimal style.
Common pairings
bikini top
bikini bottom
wear a bikini
Word Forms
bikinis plural
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Etymology
Named after Bikini Atoll, where the US tested nuclear weapons in 1946 — the swimsuit's designer reportedly hoped it would cause a similar sensation.