swimsuit

/S W IH1 M S UW0 T/
noun
  1. 1

    A garment worn for swimming.

    โ€œPut on your swimsuit and let's go for a swim.โ€

  2. 2

    A tight-fitting one-piece garment worn by women and girls.

    โ€œJade refused to go swimming with her brother until he helped her find her favorite swimsuit.โ€

Source: https://en.wiktionary.org/wiki/swimsuit