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half-mast

American  
[haf-mast, hahf-mahst] / ˈhæfˈmæst, ˈhɑfˈmɑst /

noun

  1. a position approximately halfway between the top of a mast, staff, etc., and its base.


verb (used with object)

  1. to place (a flag) at half-mast, as a mark of respect for the dead or as a signal of distress.

half-mast British  

noun

  1. the lower than normal position to which a flag is lowered on a mast as a sign of mourning or distress

"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

verb

  1. (tr) to put (a flag) in this position

"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

Etymology

Origin of half-mast

First recorded in 1620–30

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Explanation

When a flag is raised about halfway up a flagpole, it's at half-mast. The half-mast position usually symbolizes mourning. Whenever you see a flag flying below the top of a ship's mast or a flagpole, you'll know it's at half-mast, also called half-staff. This tradition dates back to the 17th century. A U.S. flag at half-mast can be a symbol of national mourning, used after the death of a president, another government official, or on a holiday like Memorial Day. Local deaths and tragedies are also sometimes marked with flags at half-mast.

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Gunther joined Air Canada after graduating from Seneca, which said flags at the campus would be lowered to half-mast on Tuesday.

From BBC • Mar. 24, 2026

AFP journalists saw the Iranian flag flying at half-mast as soldiers stood guard.

From Barron's • Mar. 3, 2026

In Tumbler Ridge, flags remained at half-mast on Thursday, and a memorial to the victims was growing as mourners stopped by to drop off teddy bears and flowers and pause for a moment of silence.

From BBC • Feb. 12, 2026

A moment of silence was held before the game with security tightened at a packed Adelaide Oval where flags were flying at half-mast.

From Barron's • Dec. 17, 2025

Then I see the silver lining and give Jonesy a smile with my eyelids at half-mast.

From "Popcorn" by Rob Harrell