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intensify

verb

in·​ten·​si·​fy in-ˈten(t)-sə-ˌfī How to pronounce intensify (audio)
intensified; intensifying
Synonyms of intensifynext

intransitive verb

: to become intense or more intensive : grow stronger or more acute

transitive verb

1
: to make intense or more intensive : strengthen
2
a
: to make more acute : sharpen
b
: to increase the density and contrast of (a photographic image) by chemical treatment
intensification noun

Examples of intensify in a Sentence

We could hear the wind howling outside as the storm intensified. They intensified their efforts to increase sales. an intensified search for survivors
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
If the debt is eventually sold to a collection agency, the communication attempts may intensify. Angelica Leicht, CBS News, 5 Dec. 2025 For both teams and television partners, the short-term change is tactical, with holiday windows expected to feature marquee matchups and intensified promotional investment. Rowan Fisher-Shotton, MSNBC Newsweek, 5 Dec. 2025 Together, the developments highlight intensifying competition to shape the future of aerial warfare as the Pentagon pushes toward autonomous, lower-cost combat aircraft. Kapil Kajal, Interesting Engineering, 4 Dec. 2025 That revelation is likely to intensify scrutiny over why the investigation dragged on for nearly five years and why previous FBI leadership failed to capitalize on the information that ultimately led to Cole’s arrest. Kaelan Deese, The Washington Examiner, 4 Dec. 2025 See All Example Sentences for intensify

Word History

First Known Use

1817, in the meaning defined at transitive sense 1

Time Traveler
The first known use of intensify was in 1817

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Cite this Entry

“Intensify.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/intensify. Accessed 7 Dec. 2025.

Kids Definition

intensify

verb
in·​ten·​si·​fy in-ˈten(t)-sə-ˌfī How to pronounce intensify (audio)
intensified; intensifying
: to make or become intense or more intensive
intensification noun
intensifier
-ˈten(t)-sə-ˌfī(-ə)r
noun

Medical Definition

intensify

verb
in·​ten·​si·​fy in-ˈten(t)-sə-ˌfī How to pronounce intensify (audio)
intensified; intensifying

transitive verb

1
: to make intense or more intensive
2
a
: to increase the density and contrast of (a photographic image) by special treatment
b
: to make more acute
use of illicit drugs intensified the patient's condition

intransitive verb

: to become intense or more intensive : grow stronger or more acute
the sore throat, headache, and fever intensified as the disease progressed
intensification noun

More from Merriam-Webster on intensify

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