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 An autopsy found the cause of death was dilated cardiomyopathy, a disease of the heart muscle that can lead to heart failure, with morbid obesity listed as a contributing factor, according to prosecutors. — Anthony Thompson, USA Today, 27 June 2026 As the polymer expands, the tiny pores dilate, allowing larger molecules to slip through. — Mrigakshi Dixit, Interesting Engineering, 18 June 2026 If a cheap pair reduces visible light but fails to block ultraviolet rays properly, the pupil can dilate in response to the darker tint while still allowing harmful UV exposure through. — Kate Hardcastle, Forbes.com, 10 June 2026 Glucose is released into the bloodstream to provide energy, and blood vessels dilate and increase flow to muscles. — Charlotte Harpur, New York Times, 3 June 2026 See All Example Sentences for dilate
Recent Examples of Synonyms for dilate
Verb
  • But the groaning synthesizer underneath her bashful smile tells you something is off — a crystalline tone now distended, unnerving.
    — Los Angeles Times, Los Angeles Times, 21 July 2026
  • Fiber slows gastric emptying, making the stomach more distended.
    — Amy Brownstein, Verywell Health, 27 May 2026
Verb
  • Kellermeyer is one of a number of companies referenced in lawsuits filed in recent months that accuse funds managed by some of Wall Street’s biggest names of inflating their marks, often to increase their own payouts.
    — Ellen DiMauro, semafor.com, 7 Oct. 2026
  • Patients lose out because the administrative bloat inflates the cost of medical care, while making costs less transparent and harder to contest.
    — Leah Pierson, STAT, 6 Oct. 2026
Verb
  • Contributions would increase depending on family size, with a family of four expected to pay $500,000, officials said.
    — Arkansas Online, Arkansas Online, 3 Oct. 2026
  • Europe in particular appears vulnerable to increasing borrowing costs, with inflation in France, Germany, Italy, and Spain all exceeding analysts’ expectations.
    — Nicholas Wu, semafor.com, 2 Oct. 2026
Verb
  • By definition, neither party enjoys a clear advantage in these contests, so both will look to augment their base support with the votes of independents.
    — Julio Borquez, The Conversation, 8 Oct. 2026
  • As The Economist recently reported, this began to change as local sources were augmented by federal and state spending.
    — Colin Pascal, Baltimore Sun, 8 Oct. 2026
Verb
  • The same architecture can now support another round of measurements from orbit as the constellation expands.
    — Aamir Khollam, Interesting Engineering, 3 Oct. 2026
  • The episode ultimately reunites Constance with two of her children, Tate and Adelaide (Jamie Brewer), as the season continues to expand its connections to the show’s earlier installments.
    — Lexi Carson, HollywoodReporter, 2 Oct. 2026
Verb
  • This new edition of Love Days, enlarged to human scale by Mandylion Press, recenters Ettie as an author of her own experience.
    — Literary Hub, Literary Hub, 5 Oct. 2026
  • The gesture is clearly meant to enlarge the novel’s moral field.
    — Zain Khalid, Vulture, 1 Oct. 2026
Verb
  • In the early 2000s, the city authorities stopped the culling of baboon troops in response to public pressure, but that has since swollen the population by a third – to around 500.
    — Will Barker, TheWeek, 5 Oct. 2026
  • Soft, breathable and moisture-wicking, socks are designed to help improve circulation, reduce swelling and relieve aches and fatigue.
    — ABC News, ABC News, 3 Oct. 2026
Verb
  • New data showed that growth accelerated faster than expected in the second quarter.
    — Ramesh Ponnuru, Washington Post, 2 Oct. 2026
  • There are more conflicts today than at any time since the Second World War, and climate disasters are accelerating.
    — Jeannie Annan, Fortune, 2 Oct. 2026

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Cite this Entry

“Dilate.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/dilate. Accessed 9 Oct. 2026.

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