A woman's very brief bathing suit WordNet 3.0 & Open English WordNet

A bikini is a two-piece swimsuit primarily worn by girls and women that features one piece on top that covers the breasts, and a second piece on the bottom: the front covering the pelvis but usually exposing the navel, and the back generally covering the intergluteal cleft and a little, some, or all of the buttocks. Wikipedia

Type of women's bathing suit. Wikipedia Disambiguation

Two-piece women's swimwear Wikidata

A brief two-piece bathing suit worn by women, especially one that exposes the midriff and navel. Wiktionary

Bathing suit. Wiktionary (translation)