- 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.
- any of a number of individual spars composing such a structure, as a topmast supported on trestletrees at the head of a lower mast.
- 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.
verb (used with object)
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Idioms for mast
Origin of mast1
OTHER WORDS FROM mastmastless, adjectivemastlike, adjectiveun·der·mast·ed, adjective
Definition for mast (2 of 3)
Origin of mast2
Definition for mast (3 of 3)
WORDS THAT USE MAST-
What does mast- mean?
Mast- comes from the Greek mastós, meaning “breast.” The Latin-based analog to masto- is mammo-, from mamma, meaning “breast.”
Mast- is a variant of masto-, which loses its -o– when combined with words or word elements beginning with vowels.
Want to know more? Read our Words That Use masto- article.
Examples of mast-
You may be familiar with the medical term mastectomy, “the operation of removing all or part of the breast or mamma.” The first part of the word, mast- means “breast,” as we’ve seen. The second part of the word, -ectomy, is a combining form meaning “excision.” Mastectomy literally translates to “breast removal.”
What are some words that use or are related to the combining form mast-?
- mastoid (using the equivalent form of masto- in Greek)
- mastoiditis (based on mastoid)
What are some other forms that mast- may be commonly confused with?
The mast on a ship is unrelated to the combining form mast-, as are a number of other words that begin with the letters mast-, such as masticate. Chew over the origin of this word at our entry for it.
Example sentences from the Web for mast
Bound together by mutual distrust, both sides end up lashing themselves to the mast of rigid law.
The failure to fly a flag at half mast was widely interpreted as an expression of disrespect.
Outside, somebody had taken care to lower the flags to half-mast.
Users include the Singapore navy: What small-warship commander would turn down a 1,000-foot mast?
When Odysseus journeyed back from Troy, his men tied him to the mast of his ship when the Sirens tempted him to leave it.War Nostalgia Is Leading Veterans to Places Like Syria. One Went Missing There.|Elliot Ackerman|May 3, 2014|DAILY BEAST
"This organized conspiracy on your part," the capstan gurgled, taking his cue from the mast.Kipling Stories and Poems Every Child Should Know, Book II|Rudyard Kipling
Here and there, but far away, a mast or sail rose above the level surface of the marsh.Ancestors|Gertrude Atherton
I also put entirely new spars into her, and there stands her old mast.The Recent Revolution in Organ Building|George Laing Miller
The man was raving mad, and the captain was obliged to have him bound hand and foot, and chained to the mast.
While it lasted flashes of lightning frequently played around the mast-top, occasioned by electricity.
British Dictionary definitions for mast (1 of 3)
Derived forms of mastmastless, adjectivemastlike, adjective
Word Origin for mast
British Dictionary definitions for mast (2 of 3)
Word Origin for mast
British Dictionary definitions for mast (3 of 3)
Medical definitions for mast
Idioms and Phrases with mast
see at half-mast.