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Synonyms

dilute

American  
[dih-loot, dahy-, dahy-loot] / dɪˈlut, daɪ-, ˈdaɪ lut /

verb (used with object)

dilutes, present (3rd person singular) diluted, past participle, past diluting present participle
  1. to make (a liquid) thinner or weaker by the addition of water or the like.

  2. to make fainter, as a color.

  3. to reduce the strength, force, or efficiency of by admixture.

    Synonyms:
    diminish, mitigate, temper, weaken

verb (used without object)

dilutes, present (3rd person singular) diluted, past participle, past diluting present participle
  1. to become diluted.

adjective

  1. reduced in strength, as a chemical by admixture; weak.

    a dilute solution.

dilute British  
/ daɪˈluːt /

verb

  1. to make or become less concentrated, esp by adding water or a thinner

  2. to make or become weaker in force, effect, etc

    he diluted his story

"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

adjective

  1. chem

    1. (of a solution, suspension, mixture, etc) having a low concentration or a concentration that has been reduced by admixture

    2. (of a substance) present in solution, esp a weak solution in water

      dilute acetic acid

"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

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Derived Forms

Inflected Forms

Participles

Conjugated Forms

Present

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Etymology

Origin of dilute

1545–55; < Latin dīlūtus washed away, dissolved (past participle of dīluere ), equivalent to dī- di- 2 + -lūtus, combining form of lautus ( lav ( ere ) to wash + -tus past participle suffix)

Explanation

When you dilute something, you make it thinner, weaker, or more watered down. If you put lots of ice cubes in your soda, the ice will melt and dilute the drink. Think about diluting as lessening the quality but increasing the quantity. Unless you're diluting a really strong drink to make it taste better or diluting heavy paint to get a lighter shade — then the quality actually improves. Quipped President John F. Kennedy, “Public speaking is the art of diluting a two-minute idea with a two-hour vocabulary.”

Keep Reading on Vocabulary.com

Vocabulary lists containing dilute

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:

Investors were concerned that the package, which gave the co-founders an aggregate stake of 6% in the company, would dilute their ownership.

From MarketWatch Jul. 20, 2026

Honeybees gather pollen from many different flower species, which may dilute contaminants across their food supply.

From Science Daily Jul. 7, 2026

The former is bad news; selling more common shares of a stock in free fall would dilute existing shareholders and push the price even lower.

From The Wall Street Journal Jun. 30, 2026

But for a fair number of others, the main objection is that Summerween cheapens Halloween — that to celebrate a summer facsimile will dilute the real thing.

From Salon Jun. 30, 2026

No, this was some dilute, watery version of him.

From "The Evolution of Calpurnia Tate" by Jacqueline Kelly

Investors also aren’t thrilled with the impact of the company’s capital raising—most recently $550 million External link from entities connected with the Saudi Public Investment Fund—which dilutes the value of existing shareholders’ stock.

From Barron's Jun. 22, 2026

Only firms in desperate need of cash sell more shares when their valuations are low, because it dilutes existing shareholders and trashes the share price.

From The Wall Street Journal Jun. 21, 2026

But even that movie dilutes Mary Shelley’s 1818 novel to a fraction of its story, reducing all of the text’s thematic resonance to a footnote along with it.

From Salon Mar. 8, 2026

Led by Keke Palmer and Jack Whitehall and featuring a quirky cast of characters, Peacock’s horror-comedy mystery series dilutes some the suspense but it’s still a good time.

From Los Angeles Times Feb. 8, 2026

Their Drink should be such as allays Thirst, and abates the Fever; such as dilutes, relaxes, and promotes the Evacuations by Stool, Urine and Perspiration.

From Advice to the people in general, with regard to their health by Tissot, S. A. D. (Samuel Auguste David)

The valuation rises to £5.52 billion on a fully diluted basis.

From The Wall Street Journal Jul. 6, 2026

Expectations on adjusted diluted earnings per share are now $28.04, down 1.9% from a previously guided $28.59—though this is still ahead of September’s $27.58 forecast.

From Barron's Jun. 30, 2026

Researchers plan to use it to study the electronic properties of atomically thin materials, nanostructures, and highly diluted atomic and molecular samples.

From Science Daily Jun. 24, 2026

By the time Emmet Sheehan took the mound, the smell had diluted, and the sunshine broke through the haze.

From Los Angeles Times Jun. 21, 2026

If those desirable mutants proceeded to interbreed with normal plants, the mutation would immediately be diluted or lost.

From "Guns, Germs, and Steel: The Fates of Human Societies" by Jared M. Diamond

The move solves an immediate headache by covering Strategy’s preferred dividend obligations, but it does so through the painful, if familiar, route of diluting common shareholders.

From Barron's Jun. 26, 2026

At the same time, the rapid rise of third-party delivery apps has flooded the market with alternative options, diluting Pizza Hut's historic dominance.

From BBC Jun. 16, 2026

But analysts say T-Mobile is constrained on large deals: Its high leverage makes borrowing expensive, and it can’t issue stock without diluting its German parent’s stake.

From The Wall Street Journal Jun. 10, 2026

“Disjointed colors, patterns, and logo-heavy designs are diluting brand equity,” he said.

From MarketWatch Jun. 5, 2026

We could cure Daoud right now, or we could try to save more people—like my parents—by conserving every drop and diluting it....But in doing so, we might end up with nothing.

From "City of the Plague God" by Sarwat Chadda

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