Bikini (noun)

1. A two-piece swimsuit for women, typically consisting of a bra top and a bottom that covers the hips, but not the stomach.
2. A swimsuit with minimal coverage.

Origin:

The word bikini comes from the name of the bikini atoll, a group of pacific islands where atomic bomb testing was conducted in the 1940s. the swimsuit was first introduced in 1946 and was named after the atoll because of the explosive reaction it was expected to create.

Examples:

1. She put on her bikini and went to the beach.
2. The models were wearing bikinis during the swimwear show.
3. The bikini is a popular choice for summer beach wear.
4. She was hesitant to wear a bikini because of her body shape.
5. The bikini has been around since the 1940s.