noun

• (nautical) A sailing ship with two or more masts, all with fore-and-aft sails; if two masted, having a foremast and a mainmast.
  "The night was considerably clearer than anybody on board her desired when the schooner Ventura headed for the land."
• (UK) A glass for drinking a large measure of sherry.
  "Boycott any pub that bans work clothes, allows customers to reserve tables or only sells beer in schooners. That is less a pub, more a private members’ club."
• (Australia) A glass of beer, of a size which varies between states (Wikipedia).
  "Foaming schooners of beer grew ever larger and more numerous as the crimson February suns went to their rest."
• (US) A large goblet or drinking glass, used for lager or ale (Wikipedia).