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 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 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 See All Example Sentences for dilate
Recent Examples of Synonyms for dilate
Verb
  • Boxing scenes in movies, other than in a handful of classics, tend to start to look all the same, a mishmash of beads of sweat and blood and jowels distended, all fists flying and battering as two men catapult and careen across the ring.
    Ryan Lattanzio, IndieWire, 19 Mar. 2026
  • My stomach wasn't distended anymore.
    Deirdre Bardolf, FOXNews.com, 19 Feb. 2026
Verb
  • The capsule will then make a water landing likely Friday, April 10, in the Pacific Ocean near California, after which five orange airbags will inflate around the top of the spacecraft and flip the capsule into an upright position.
    Eric Lagatta, USA Today, 2 Apr. 2026
  • The Moon — unlike Mars — does not have an atmosphere to supply carbon dioxide for growing algae, so the house-inflating fungi might have to be fed sawdust from Earth.
    Big Think, Big Think, 31 Mar. 2026
Verb
  • Farmers had hoped to compensate for last year's losses, when farm bankruptcies increased for the second year in a row.
    Lana Zak, CBS News, 29 Mar. 2026
  • The goal is to complete the project ahead of the FIFA World Cup, when traffic and pedestrian activity are expected to increase downtown.
    Tiffani Jackson, Fort Worth Star-Telegram, 29 Mar. 2026
Verb
  • Fortifier, a product tailored to preemies, is meant to augment mother’s milk when babies are born prematurely and a mother’s milk alone doesn’t deliver enough nutrition.
    David Hilzenrath, USA Today, 29 Mar. 2026
  • And the bullpen highlighted by Carlos Estevez and Lucas Erceg augmented by the addition of Matt Strahm figures to give them an advantage in putting away games.
    Kansas City Star, Kansas City Star, 27 Mar. 2026
Verb
  • With the 2026 midterms approaching, sustained voter unease could reshape the broader electoral map and complicate Republican efforts to hold or expand their congressional margins.
    Adeola Adeosun, MSNBC Newsweek, 31 Mar. 2026
  • But the department is looking to expand its authority.
    ABC News, ABC News, 31 Mar. 2026
Verb
  • The test probably indicates Kim is intent on enlarging and modernizing an arsenal of missiles capable of reaching the United States mainland.
    Hyung-Jin Kim, Los Angeles Times, 29 Mar. 2026
  • The test likely indicates Kim is intent on enlarging and modernizing an arsenal of missiles capable of reaching the United States mainland.
    ABC News, ABC News, 28 Mar. 2026
Verb
  • From there, the Hornets’ advantage continued to swell with little Nets resistance, outside of a Minott flagrant foul early in the fourth quarter in a 27-point game.
    C.J. Holmes, New York Daily News, 1 Apr. 2026
  • March 13 More than 300 TSA workers have resigned about a month into the partial government shutdown, DHS says, as employees miss their first full paycheck and callout rates swell.
    Graham Hurley, CNN Money, 31 Mar. 2026
Verb
  • At the height of the pandemic — when learning loss was accelerating and reading gaps were widening — the approval process was estimated to take six months to a year.
    Daniel L Gordon, Daily News, 29 Mar. 2026
  • In the long term, the supply shock may accelerate nuclear restarts and electric vehicle adoption faster than years of climate policy ever managed.
    Nicholas Gordon, Fortune, 29 Mar. 2026

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Cite this Entry

“Dilate.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/dilate. Accessed 2 Apr. 2026.

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