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 Confronted with the sudden increase in heat, your cardiovascular system is put to the test – blood vessels dilate, heart rate increases and blood gets pushed to your skin, where it can be cooled more easily by sweat. Will Stone, NPR, 6 Mar. 2026 In the later stages, skin will turn blue, pupils will dilate, and pulse and breathing slow. Brayden Garcia january 21, Fort Worth Star-Telegram, 21 Jan. 2026 The second drug, misoprostol, taken 24 to 48 hours later, causes the uterus to contract and dilate the cervix, which will expel the embryo. Arthur Jones Ii, ABC News, 14 Jan. 2026 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 See All Example Sentences for dilate
Recent Examples of Synonyms for dilate
Verb
  • Fiber slows gastric emptying, making the stomach more distended.
    Amy Brownstein, Verywell Health, 27 May 2026
  • In his songs, the English language turned woolier and more expressionistic; musical space-time distended and stretched.
    New York Times, New York Times, 28 Apr. 2026
Verb
  • This has combined to make Finals tickets at the Garden even scarcer, inflating prices on the secondary market.
    Matt Egan, CNN Money, 3 June 2026
  • The pair also forged AlHusseini’s bank and brokerage statements to inflate his assets by millions of dollars to help get the loans, prosecutors said.
    Andrea Klick, Oc Register, 2 June 2026
Verb
  • Since then, the damage has increased at an alarming rate, and many residents fear the end is near for the 53-year-old structure.
    John Ramos, CBS News, 7 June 2026
  • The recent strikes have increased the strain on the fragile truce between Washington and Tehran.
    Dalia Abdelwahab, CNN Money, 7 June 2026
Verb
  • Liquid fuel rockets will always have their inherent limitations, as will any systems that hope to augment or replace them.
    David Szondy May 31, New Atlas, 31 May 2026
  • This is the first of a new type of rideshare program flying to that orbit that augments SpaceX’s Transporter program that flies to SSO.
    Richard Tribou, The Orlando Sentinel, 30 May 2026
Verb
  • The deal with Curry, who is a household name in China, is expected to further boost Li-Ning’s popularity in the country and help expand the brand’s market share in the US.
    John Liu, CNN Money, 2 June 2026
  • By greatly expanding the dimensions of his images, with their muted palettes, tight cropping, found symmetries, and laconic wit, had the maestro of the photographic epigram betrayed his subtractive aesthetic?
    James Quandt, Artforum, 2 June 2026
Verb
  • While Studio Yellowdot expanded on the sculptural quality of pasta by enlarging the contours, others have taken a more granular approach.
    Yelena Moroz Alpert, Architectural Digest, 29 May 2026
  • As a musician, Holloway’s voice is inseparable from his identity and livelihood, and going on testosterone — which causes the vocal folds to thicken and lengthen, lowering pitch, while also enlarging the larynx — terrified him.
    Leslie Katz, Forbes.com, 28 May 2026
Verb
  • Behind the glass sat a sea-foam green Hermes 3000, a pre-1966 model, instantly recognizable by its bulbous body and soft, swelling curves.
    Literary Hub, Literary Hub, 2 June 2026
  • Lucas Mukasa / Anadolu via Getty Images Angry protests swelled Monday, including in the central town of Nanyuki, which is set to host the quarantine center.
    Mithil Aggarwal, NBC news, 2 June 2026
Verb
  • That’s another bill that doesn’t include her name because a Senate version of the legislation, which was designed to accelerate biomedical research, is what eventually passed, Owens said.
    Elliott Wenzler, Denver Post, 31 May 2026
  • The consumer demand, in both African domestic markets and globally, is documented and accelerating.
    Lisa Curtis, Forbes.com, 31 May 2026

Browse Nearby Words

Cite this Entry

“Dilate.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/dilate. Accessed 7 Jun. 2026.

More from Merriam-Webster on dilate

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster