harbor vs jetty

harbor

noun
  • A sheltered expanse of water, adjacent to land, in which ships may anchor or dock, especially for loading and unloading. 

  • Any place of shelter. 

  • A mixing box for materials. 

  • A harbor, even if it is a little harbor, is a good thing, since adventurers come into it as well as go out, and the life in it grows strong, because it takes something from the world, and has something to give in return - Sarah Orne Jewett 

verb
  • To take refuge or shelter in a protected expanse of water. 

  • To drive (a hunted stag) to covert. 

  • To hold or persistently entertain in one's thoughts or mind. 

  • To provide a harbor or safe place for. 

jetty

noun
  • A wharf or dock extending from the shore. 

  • A part of a building that jets or projects beyond the rest, and overhangs the wall below. 

  • A structure of wood or stone extended into the sea to influence the current or tide, or to protect a harbor or beach. 

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