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diminution

American  
[dim-uh-noo-shuhn, -nyoo-] / ˌdɪm əˈnu ʃən, -ˈnju- /

noun

  1. the act, fact, or process of diminishing; lessening; reduction.

  2. Music. the repetition or imitation of a subject or theme in notes of shorter duration than those first used.


diminution British  
/ ˌdɪmɪˈnjuːʃən /

noun

  1. reduction; decrease

  2. music the presentation of the subject of a fugue, etc, in which the note values are reduced in length Compare augmentation

"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

Other Word Forms

Etymology

Origin of diminution

1275–1325; Middle English diminucion < Anglo-French diminuciun < Latin dīminūtiōn- (stem of dīminūtiō ), for dēminūtiōn- (stem of dēminūtiō ) (by influence of dīmunuere; see diminish), equivalent to dēminūt ( us ) (past participle of dēminuere, equivalent to dē- de- + minuere to lessen) + -iōn- -ion

Explanation

When you "dim" a light, you reduce the brightness coming from the bulb. Diminution (not actually related to "dim") is the lessening of something to a smaller size or lower status, as a diminution of your "superpowers" when you wake up from a dream. Pronouncing diminution (dim-ih-NYOO-shun) only seems to get harder the more you repeat it, but memorizing the meaning and sounds with "diminish" and "ammunition" helps. If you take away the firepower in a battle, for example, you diminish the ammunition, causing a diminution of the army's power. A diminution is a decrease of size, time, or esteem. Does the word still sound funny? Let's try a diminution, or reduction, of the number of times we say it — starting now.

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Vocabulary lists containing diminution

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.

See Examples For:

Accounting for asset write-downs, corporate failures and diminution of wealth, the dot-com and subprime losses are estimated at around $5-6 trillion and perhaps $15-20 trillion, respectively.

From MarketWatch Jul. 9, 2026

“That would still be the case if there was some diminution in this number over time because of Google’s strategy,” they wrote.

From Barron's Jan. 1, 2026

I can make no sense of my life without design being central to it, and it never feels to me like a distraction, waste of time or diminution of gravitas.

From Seattle Times Apr. 21, 2023

“I didn’t see any diminution of the supervision we were getting,” Mr. Frank said.

From New York Times Mar. 13, 2023

Any diminution in magnetism is likely to be bad news, because magnetism, apart from holding notes to refrigerators and keeping our compasses pointing the right way, plays a vital role in keeping us alive.

From "A Short History of Nearly Everything" by Bill Bryson

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