[ dih-nahy-er ]
/ dɪˈnaɪ ər /
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a person who denies.
a person who refuses to accept the existence, truth, or validity of something despite evidence or general support for it: The writer is a Holocaust denier.It makes no sense for an environmental watchdog agency to hire a denier of climate change.Election deniers continue to question the integrity of the ballot counts.
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Origin of denier

First recorded in 1350–1400; Middle English; deny + -er1

usage note for denier

The words denier and denialism are used to describe people and positions that are opposed to the validity or veracity of an explanation or narrative put forth by an authority or expert. The words are commonly used in fixed compounds that truncate the name of the official account being called into question. Thus, a denier of climate change is often called a climate denier, and a movement that refuses to accept the integrity or official results of an election is referred to as election denialism. These expressions become fixed in their shortened form, and are often then associated with a specific counternarrative, rather than broadly applying to any and all denial associated with the modifying word (e.g., climate, election, evolution, genocide).

Other definitions for denier (2 of 2)

[ duh-neer or, especially for 1, den-yer; French duh-nyey ]
/ dəˈnɪər or, especially for 1, ˈdɛn yər; French dəˈnyeɪ /

a unit of weight indicating the fineness of fiber filaments and yarns, both silk and synthetic, and equal to a yarn weighing one gram per each 9,000 meters: used especially in indicating the fineness of women's hosiery.
any of various coins issued in French-speaking regions, especially a coin of France, originally of silver but later of copper, introduced in the 8th century and continued until 1794.

Origin of denier

1375–1425; late Middle English <Old French <Latin dēnāriusdenarius
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use denier in a sentence

British Dictionary definitions for denier (1 of 2)


(ˈdɛnɪˌeɪ, ˈdɛnjə) a unit of weight used to measure the fineness of silk and man-made fibres, esp when woven into women's tights, etc. It is equal to 1 gram per 9000 metres
(dəˈnjeɪ, -ˈnɪə) any of several former European coins of various denominations

Word Origin for denier

C15: from Old French: coin, from Latin dēnārius denarius

British Dictionary definitions for denier (2 of 2)

/ (dɪˈnaɪə) /

a person who denies
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