A mast is a pole that rises vertically from a ship and supports the sails. Really big sailboats have more than one mast. A mast is also another name for flagpole.

The mast has an important job — to support the sails, which allows the wind to propel the ship. Other types of masts are used to support flags and called flagpoles. If you've ever seen a flag at half-mast, it's been lowered down the flagpole to show respect for someone who died. Mast is an old word meaning “pole or rod.”

Definitions of mast
  1. noun
    a vertical spar for supporting sails
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    the mast nearest the bow in vessels with two or more masts
    jigger, jiggermast
    any small mast on a sailing vessel; especially the mizzenmast of a yawl
    jury mast
    a temporary mast to replace one that has broken off
    the chief mast of a sailing vessel with two or more masts
    mizen, mizenmast, mizzen, mizzenmast
    third mast from the bow in a vessel having three or more masts; the after and shorter mast of a yawl, ketch, or dandy
    the mast next above a lower mast and topmost in a fore-and-aft rig
    the topmast next above the foremast
    the topmast next above the mainmast
    royal mast
    topmast immediately above the topgallant mast
    topgallant, topgallant mast
    a mast fixed to the head of a topmast on a square-rigged vessel
    type of:
    a stout rounded pole of wood or metal used to support rigging
  2. noun
    any sturdy upright pole
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    type of:
    a long (usually round) rod of wood or metal or plastic
  3. noun
    nuts of forest trees (as beechnuts and acorns) accumulated on the ground
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    type of:
    usually large hard-shelled seed
  4. noun
    nuts of forest trees used as feed for swine
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    type of:
    feed, provender
    food for domestic livestock
DISCLAIMER: These example sentences appear in various news sources and books to reflect the usage of the word ‘mast'. Views expressed in the examples do not represent the opinion of or its editors. Send us feedback
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