bather vs swimsuit

bather

noun
  • A bathing costume 

  • One who bathes (cleans oneself with water, for example in a bathtub). 

  • One who immerses oneself in water for pleasure or refreshment: one who swims (for example at a lake or beach). 

  • A sunbather 

  • One who gives a bath to another. 

swimsuit

noun
  • A garment worn for swimming. 

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

How often have the words bather and swimsuit occurred in a corpus of books? (source: Google Ngram Viewer )