dilate

Definition of dilatenext

Synonym Chooser

How does the verb dilate differ from other similar words?

Some common synonyms of dilate are amplify, distend, expand, inflate, and swell. While all these words mean "to increase in size or volume," dilate applies especially to expansion of circumference.

dilated pupils

When is amplify a more appropriate choice than dilate?

In some situations, the words amplify and dilate are roughly equivalent. However, amplify implies the extension or enlargement of something inadequate.

amplify the statement with details

When can distend be used instead of dilate?

The words distend and dilate are synonyms, but do differ in nuance. Specifically, distend implies outward extension caused by pressure from within.

a distended abdomen

Where would expand be a reasonable alternative to dilate?

Although the words expand and dilate have much in common, expand may apply regardless of the manner of increase (such as growth, unfolding, addition of parts).

a business that expands every year

When is it sensible to use inflate instead of dilate?

The synonyms inflate and dilate are sometimes interchangeable, but inflate implies expanding by introduction of air or something insubstantial and suggests a vulnerability to sudden collapse.

an inflated ego

When would swell be a good substitute for dilate?

The words swell and dilate can be used in similar contexts, but swell implies gradual expansion beyond a thing's original or normal limits.

the bureaucracy swelled to unmanageable proportions

Example Sentences

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.
Recent Examples of dilate For instance, if a listener’s pupils dilate unnaturally during a conversation, signifying strain, the hearing aid could automatically engage a more aggressive noise suppression mode or narrow its directional microphone beam. IEEE Spectrum, 7 Jan. 2026 Pomegranates are rich in polyphenols, which may dilate blood vessels and lower blood pressure. Carrie Madormo, Verywell Health, 23 Dec. 2025 Heat applied to the body tends to dilate blood vessels, which improves blood flow, according to Highett Podiatry. Hillary Maglin, Travel + Leisure, 18 Dec. 2025 Most people who study physics can only refer to the Lorentz transformation’s equations and plug numbers in, not explain why times dilate and lengths contract, particularly near the speed of light. Big Think, 5 Nov. 2025 See All Example Sentences for dilate
Recent Examples of Synonyms for dilate
Verb
  • My stomach wasn't distended anymore.
    Deirdre Bardolf, FOXNews.com, 19 Feb. 2026
  • The fragile skeleton of her ego threatened to snap under the pressure of the animal forces that pressed down on her consciousness, her narrative mind sagging and distended beneath pitiless and grandiose feeling.
    Mary Ann Grossmann, Twin Cities, 11 Jan. 2026
Verb
  • Once inflated into shape, the unit takes on a classic truck camper form, with a relatively low alcove over the driver's cab and a body that starts wide up top and cuts inward down lower to fit inside the truck bed.
    New Atlas, New Atlas, 11 Mar. 2026
  • Now that the Aviation Department’s vision is making life more difficult for one of ORD’s hub airlines, inflated fears of delays are being raised.
    Chicago Tribune, Chicago Tribune, 9 Mar. 2026
Verb
  • Trump’s increasing willingness to use overwhelming military force to pursue American interests abroad throws that calculus into question.
    Timothy Nerozzi, The Washington Examiner, 8 Mar. 2026
  • City records from November show police planned to install six more cameras and increase lighting.
    Cameron Knight, Cincinnati Enquirer, 8 Mar. 2026
Verb
  • Finally, consider augmenting the winter landscape, when roses and many of their companions lie dormant.
    Kim Toscano, Southern Living, 7 Mar. 2026
  • This was the first Dragon launch from SLC-40 since the addition of a crew access arm to support Dragon launches from more than one Space Coast pad and augment normal launches from KSC’s Launch Pad 39-A.
    Richard Tribou, The Orlando Sentinel, 4 Mar. 2026
Verb
  • Situationist is also expanding its team, with a new office above the new store.
    Lucy Maguire, Vogue, 10 Mar. 2026
  • Republican lawmakers are opposed to expanding health care to undocumented immigrants, and particularly ready to attack Democrat efforts to raise new revenues to do so.
    Andrew Graham March 9, Sacbee.com, 10 Mar. 2026
Verb
  • How pathetically far this blithering, unprincipled piece of trash has gone to endanger other lives, to expressly distract and deflect from his own wicked deeds, and to further benefit his grifting family’s larcenously enlarged bounties.
    Voice of the People, New York Daily News, 8 Mar. 2026
  • One tiny root invades and expands over time, enlarging holes and allowing more roots to grow inside.
    Brandee Gruener, Southern Living, 28 Feb. 2026
Verb
  • In contrast, health care is a labor-intensive industry that’s become more central to the economy as baby boomers retire; the number of people collecting Social Security swelled by more than 2 million last year alone.
    Conor Sen, Mercury News, 10 Mar. 2026
  • Dreaming about winning that swelling $533 million Mega Millions prize?
    Mary Walrath-Holdridge, USA Today, 9 Mar. 2026
Verb
  • China’s consumer-price growth accelerated to the quickest in over three years and factory deflation moderated again, after a rally in energy markets and as household spending boomed during a later-than-usual Lunar New Year holiday.
    Bloomberg News, Bloomberg, 9 Mar. 2026
  • But record-breaking temperatures in recent years have led scientists to question whether the pace of temperature gains is accelerating.
    Los Angeles Times, Los Angeles Times, 9 Mar. 2026

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Cite this Entry

“Dilate.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/dilate. Accessed 12 Mar. 2026.

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