mast

1
[mast, mahst]

noun

Nautical.
  1. a spar or structure rising above the hull and upper portions of a ship or boat to hold sails, spars, rigging, booms, signals, etc., at some point on the fore-and-aft line, as a foremast or mainmast.
  2. any of a number of individual spars composing such a structure, as a topmast supported on trestletrees at the head of a lower mast.
  3. any of various portions of a single spar that are beside particular sails, as a top-gallant mast and royal mast formed as a single spar.
Also called pillar. the upright support of a jib crane.
any upright pole, as a support for an aerial, a post in certain cranes, etc.

verb (used with object)

to provide with a mast or masts.

Nearby words

  1. massys,
  2. massys, quentin,
  3. massé,
  4. masséna,
  5. masséna, andré,
  6. mast ball,
  7. mast band,
  8. mast bed,
  9. mast cell,
  10. mast cell leukemia

Idioms

    before the mast, Nautical. as an unlicensed sailor: He served several years before the mast.

Origin of mast

1
before 900; Middle English; Old English mæst; cognate with German Mast; akin to Latin mālus pole

Related formsmast·less, adjectivemast·like, adjectiveun·der·mast·ed, adjective

mast

2
[mast, mahst]

noun

the fruit of the oak and beech or other forest trees, used as food for hogs and other animals.

Origin of mast

2
before 900; Middle English; Old English mæst; cognate with German Mast; akin to meat

mast-

variant of masto- before a vowel: mastectomy.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for mast


British Dictionary definitions for mast

mast

1

noun

nautical any vertical spar for supporting sails, rigging, flags, etc, above the deck of a vessel or any components of such a composite spar
any sturdy upright pole used as a support
Also called: captain's mast nautical a hearing conducted by the captain of a vessel into minor offences of the crew
before the mast nautical as an apprentice seaman

verb

(tr) nautical to equip with a mast or masts
Derived Formsmastless, adjectivemastlike, adjective

Word Origin for mast

Old English mæst; related to Middle Dutch mast and Latin mālus pole

noun

the fruit of forest trees, such as beech, oak, etc, used as food for pigs

Word Origin for mast

Old English mæst; related to Old High German mast food, and perhaps to meat

mast-

combining form

a variant of masto-
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for mast
Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for mast

mast-

pref.

Variant ofmasto-

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Idioms and Phrases with mast

mast

see at half-mast.

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.