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 Where spatial curvature is large, the deviations from straight-line paths are large, and the rate at which time passes can dilate significantly as well. Big Think, 24 Mar. 2026 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 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
  • The legislation further inflates ICE’s usual $10 billion annual budget.
    Chad de Guzman, Time, 10 June 2026
  • The affidavit also said Storey made $10,526 in unauthorized donations to the church, which fraudulently inflated the amount of the donations.
    Judy L. Thomas, Kansas City Star, 10 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
  • From there, more would have to balance the trade financially, as well as in terms of prospects that could either augment Milwaukee’s mix or be flipped otherwise.
    Ira Winderman, Sun Sentinel, 6 June 2026
  • Whatever the final cost, the program is clearly designed to build both new missile defense capabilities and to augment existing space infrastructure—creating exciting market opportunities for both traditional space primes and new market entrants.
    Michael P. Dempsey, Forbes.com, 5 June 2026
Verb
  • Publix is set to open five new stores by early July, expanding its footprint in Florida and Kentucky as the grocery chain continues steady growth across the Southeast.
    Fernando Cervantes Jr, USA Today, 9 June 2026
  • As part of the deal announced Monday, Amazon will work with Corning on a new program to expand a fiber-optic technician training program at Catawba Valley Community College based in Hickory.
    Charlotte Observer, Charlotte Observer, 8 June 2026
Verb
  • Certain conditions or injuries can enlarge the spleen.
    Amy Brownstein, Verywell Health, 5 June 2026
  • That being said, at its actual best, my complexion is usually uneven, my pores enlarged, and my face dotted with hyperpigmentation.
    Tamim Alnuweiri, InStyle, 4 June 2026
Verb
  • Santa Monica city officials are urging people to stop feeding the squirrels at Palisades Park due to a swelling population and potential environmental concerns.
    Nicole Comstock, CBS News, 9 June 2026
  • That relief becomes tangible if a traveler hears about a delay early enough to rebook a connection or reroute ground transport before queues swell.
    Gretchen Wittenmyer-Stone, Miami Herald, 9 June 2026
Verb
  • Hufanga, who faced the Hill-Waddle tandem firsthand while playing for San Francisco back then, noted the duo’s ability to accelerate and decelerate to disguise in-breaking routes as deep routes and vice versa.
    Luca Evans, Denver Post, 7 June 2026
  • The kingdom is also accelerating spending on defense — which has taken on an even greater importance because of the war with Iran — and investments tied to artificial intelligence, logistics, and infrastructure needed for Expo 2030 and the 2034 men’s soccer World Cup.
    Matthew Martin, semafor.com, 7 June 2026

Browse Nearby Words

Cite this Entry

“Dilate.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/dilate. Accessed 13 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