Dictionary.com
Thesaurus.com

ketch vs. schooner

[kech] / kɛtʃ /

noun

Nautical.
  1. a sailing vessel rigged fore and aft on two masts, the larger, forward one being the mainmast and the after one, stepped forward of the rudderpost, being the mizzen or jigger.

[skoo-ner] / ˈsku nər /

noun

  1. Nautical. any of various types of sailing vessel having a foremast and mainmast, with or without other masts, and having fore-and-aft sails on all lower masts.

  2. a very tall glass, as for beer.

  3. prairie schooner.