waterfront vs waterline

waterfront

noun
  • The land alongside a body of water. 

  • The dockland district of a town. 

waterline

noun
  • A line showing where the water has been, usually a line separating dry land and wet areas; a watermark or tidemark. 

  • A line formed by the surface of the water on the hull of a ship when she is afloat; any of a series of short lines marked on the hull to show where the waterline would be under different loadings. 

  • A horizontal line indicating the shape of an airfoil. 

  • The inner rim of the eyelid, just behind the lash line; primarily used in reference to the application of eyeliner. 

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