mast (n.)

  1. a vertical spar for supporting sails

  2. nuts of forest trees (as beechnuts and acorns) accumulated on the ground

  3. nuts of forest trees used as feed for swine

  4. any sturdy upright pole

The dictionary is based on the WordNet Electronic Lexical Database.
WordNet 3.0 Copyright 2011 by Princeton University. All rights reserved.