beachwear vs swimsuit

beachwear

noun
  • Clothing suitable for wearing on the beach, though not necessarily for swimming in. 

swimsuit

noun
  • A garment worn for swimming. 

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

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