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 In essence, these medications – known as PDE-5 inhibitors – work by preventing the breakdown of a signaling molecule, which in turn helps relax smooth muscle cells and dilate blood vessels. — Will Stone, NPR, 17 Aug. 2026 The sudden temperature change causes blood vessels in the palate to constrict and then rapidly dilate as warm blood flows into the area to restore normal tissue temperature. — Encyclopedia Britannica, 7 Aug. 2026 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 See All Example Sentences for dilate
Recent Examples of Synonyms for dilate
Verb
  • Films today tend to err on the side of length in a way that can feel like fiction being distended.
    — Elissa Suh, Vogue, 6 Oct. 2026
  • 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
Verb
  • But techno-skeptics have argued that warnings of doom are designed to inflate valuations and hype the technology.
    — Los Angeles Times, Los Angeles Times, 2 Nov. 2026
  • Two decades ago, as Colombia’s army fought powerful leftist guerrillas, soldiers killed around 7,000 civilians, dressing up and planting guns on the corpses to inflate enemy body counts, a tribunal later found.
    — New York Times, New York Times, 30 Oct. 2026
Verb
  • FinFETs helped manufacturers increase performance and energy efficiency across generations of smartphone, computer, and server processors.
    — Atharva Gosavi, Interesting Engineering, 7 Nov. 2026
  • Those figures increase to 14 tons and 20 tons, respectively, for the larger 9×4 variant.
    — Eric Berger, ArsTechnica, 6 Nov. 2026
Verb
  • The original tracklist is augmented by a full recording of the band’s 1977 show at Oakland Coliseum Arena, filmed by teen bootlegger Reinhard Hohlwein.
    — Hattie Lindert, Pitchfork, 5 Nov. 2026
  • The governor also urged national lawmakers to pass a federal film and television incentive, which could augment states’ efforts to bolster local production.
    — Brent Lang, IndieWire, 2 Nov. 2026
Verb
  • The agreement with Kyoto Fusioneering will expand existing work on next-generation gyrotrons — devices that generate high-power microwaves used to heat the plasma.
    — Ian King, CNBC, 7 Nov. 2026
  • Guests celebrating special occasions or those just living the good life can choose the Ritz-Carlton Suite, which offers spacious living, ocean views, and can be further expanded.
    — Condé Nast, Condé Nast Traveler, 7 Nov. 2026
Verb
  • Christ’s feet are closest to the viewer, and his head and torso are enlarged beyond normal proportions.
    — Joshua Yaffa, New Yorker, 2 Nov. 2026
  • The blood vessels in the membrane over the eye, the conjunctiva, were enlarged, making his eyes look red.
    — Beth Mole, ArsTechnica, 26 Oct. 2026
Verb
  • As debt issuance volumes swell, investors may demand higher yields, forcing corporations to offer elevated interest rates to attract buyers for new bonds.
    — , CNBC, 4 Nov. 2026
  • The supersite itself saw waits swell beyond two hours, with lines by late afternoon starting 2½ blocks away.
    — Sam Charles, Chicago Tribune, 3 Nov. 2026
Verb
  • Chemically destroying the channel in adult mouse osteocytes accelerated signs of aging far beyond the skeleton, affecting the brain, liver, and muscles.
    — New Atlas, New Atlas, 6 Nov. 2026
  • However, strain among emerging cloud providers could accelerate industry consolidation.
    — , CNBC, 6 Nov. 2026

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Cite this Entry

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

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