plural bikinis
1
a
: a two-piece bathing suit worn by women that does not cover the midriff see also string bikini, tankini
b
: a short snug swimsuit worn by men
2
: a pair of low-cut briefs (see brief entry 2 sense 4)
Launched in May, the underwear brand for men and women includes bikinis, … G-strings and boxer briefs.—
Phyllis Furman
Phyllis Furman… ultra low-rise jeans with a built-in bikini or thong.—Sunday Tribune (South Africa)
—often used before another nounSunday Tribune (South Africa)Bikini briefs are usually lower than the true waist, often at the hips.—Clifford Pugh
Clifford PughExamples of bikini in a Sentence
Recent Examples on the Web
Both her daughters appeared in the photos wearing flowy white pants over their bikini bottoms and black sunglasses.
—Lori A Bashian Fox News, Fox News, 4 Jan. 2025
After giving a view of the snow, the video cuts to more shots of her and her eye-catching bikini before showcasing photos of Lopez outdoors with more family members, including her sister Lynda Lopez, 53, and niece Lucie, 16.
—Ingrid Vasquez, People.com, 3 Jan. 2025
How did Justin Bieber React to Hailey Bieber’s divorce rumors?
Justin Bieber posted a picture of his wife wearing a fur coat and bikini.
—Lea Veloso, StyleCaster, 2 Jan. 2025
This topic hit fever pitch over the past few days when the actor was flooded with negative comments after images of her in a bikini spread across the internet.
—Callum Booth, Forbes, 17 Dec. 2024
See all Example Sentences for bikini 
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Lori A Bashian Fox News, Fox News, 4 Jan. 2025
After giving a view of the snow, the video cuts to more shots of her and her eye-catching bikini before showcasing photos of Lopez outdoors with more family members, including her sister Lynda Lopez, 53, and niece Lucie, 16.
—Ingrid Vasquez, People.com, 3 Jan. 2025
How did Justin Bieber React to Hailey Bieber’s divorce rumors?
Justin Bieber posted a picture of his wife wearing a fur coat and bikini.
—Lea Veloso, StyleCaster, 2 Jan. 2025
This topic hit fever pitch over the past few days when the actor was flooded with negative comments after images of her in a bikini spread across the internet.
—Callum Booth, Forbes, 17 Dec. 2024
See all Example Sentences for bikini
Dictionary Entries Near bikini
Cite this Entry
“Bikini.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/bikini. Accessed 19 Jan. 2025.
Copy CitationKids Definition
bikini
noun
bi·ki·ni
bə-ˈkē-nē 
: a scanty two-piece bathing suit for a girl or woman
Etymology
from French bikini "two-piece bathing suit," from Bikini, atoll in the Marshall Islands
Geographical Definition
Bikini
geographical name
Bi·ki·ni
bi-ˈkē-nē
island (atoll) of the Marshall Islands
Note: Bikini was the site of U.S. atomic bomb tests in 1946 and hydrogen bomb tests in 1954 and 1956.
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