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Synonyms

intensify

American  
[in-ten-suh-fahy] / ɪnˈtɛn səˌfaɪ /

verb (used with object)

intensified, intensifying
  1. to make intense or more intense.

    Synonyms:
    concentrate, quicken, deepen
    Antonyms:
    weaken, alleviate
  2. to make more acute; strengthen or sharpen.

    Synonyms:
    concentrate, quicken, deepen
  3. Photography. to increase the density and contrast of (a negative) chemically.


verb (used without object)

intensified, intensifying
  1. to become intense or more intense.

intensify British  
/ ɪnˈtɛnsɪˌfaɪ /

verb

  1. to make or become intense or more intense

  2. (tr) to increase the density of (a photographic film or plate)

"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

Synonym Usage

See aggravate.

Other Word Forms

Etymology

Origin of intensify

First recorded in 1810–20; intense + -ify

Explanation

To intensify is to increase the intensity, force, or power of something. If you snap a selfie and the colors aren't intense enough, you may be able to intensify them with a photo editor. You can see the word "intense" in intensify, which clues you in to the meaning of the verb. When you make something more intense, you intensify it — make it more of whatever it is. Believe it or not, a pinch of salt can actually intensify the sweetness of the sugar in a cake. It makes it even sweeter. Storm chasers never know whether a tornado will continue to intensify or begin to abate as they approach — and the difference could mean life or death for them.

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Vocabulary lists containing intensify

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.

Nomura says Beijing may still need to intensify property-sector clean up efforts and accelerate fiscal reforms to support weaker regions.

From The Wall Street Journal • May 28, 2026

On Wall Street, chatter about a summer “melt-up” has started to intensify.

From MarketWatch • May 26, 2026

Usyk's stock, for the first time in his career, with take a hit on the back of this - and debate around the result and a potential second meeting is only likely to intensify.

From BBC • May 23, 2026

“It will cause Beijing to intensify its efforts to test the boundaries of what it can gain in terms of loosening America’s commitment to Taiwan’s security.”

From The Wall Street Journal • May 20, 2026

Their slow progress down the River of Doubt continued to intensify everyone's growing anxiety.

From "Death on the River of Doubt" by Samantha Seiple

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