What does the word arch mean?

Usage examples for arch

  1. Twisting her pretty head sideways, she flashed an arch look at me from under her lashes, then glanced quickly away again. – The Paternoster Ruby by Charles Edmonds Walk
  2. And the arch of a doorway is a good site, just see that the room in back is dark. – Toy Shop by Henry Maxwell Dempsey
  3. Tubella pennsylvanica, Weltner, Arch. – Freshwater Sponges, Hydroids & Polyzoa by Nelson Annandale
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