circular
Americanadjective
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having the form of a circle; round.
a circular tower.
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of or relating to a circle.
a circular plane.
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moving in or forming a circle or a circuit.
the circular rotation of the earth.
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moving or occurring in a cycle or round.
the circular succession of the seasons.
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roundabout; indirect; circuitous.
a circular route.
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Logic. of or relating to reasoning in which the conclusion is ostensibly proved, but in actuality it or its equivalent has been assumed as a premise.
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pertaining to a circle or set of persons.
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(of a letter, memorandum, etc.) addressed to a number of persons or intended for general circulation.
noun
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circulars
plural
adjective
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of, involving, resembling, or shaped like a circle
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circuitous
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(of arguments) futile because the truth of the premises cannot be established independently of the conclusion
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travelling or occurring in a cycle
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(of letters, announcements, etc) intended for general distribution
noun
Other Word Forms
Derived Forms
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circularitynoun
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circularnessnoun
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noncircularadjective
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subcircularadjective
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uncircularadjective
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circularlyadverb
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noncircularlyadverb
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subcircularlyadverb
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uncircularlyadverb
Inflected Forms
Nouns
Etymology
Origin of circular
First recorded in 1375–1425; late Middle English, from Latin circulāris, equivalent to circul(us), circlus “a circular form or figure; a ring or circle” + -āris adjective suffix; see origin at circle, -ar 1
Explanation
If something is circular, it has a round shape. You might take a circular route on your jog, running all the way around the park. You can build a circular fence around your garden, or pipe frosting flowers in a circular design on top of a birthday cake. Look at either from above, and they form circles. In logic, a circular argument is one that ends up exactly where it started — you assume something, rather than proving it. A paper advertisement can also be called a circular, from the idea that it's distributed to a certain circle, or group, of people.
Vocabulary lists containing circular
Geometry - Introductory
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Geometry (Base List)
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Measurement and Data
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
See Examples For:
“There are still risks and open questions around circular financing and the pace of new model development,” in the Truist view.
From MarketWatch ● Sep. 18, 2026
The two events have rekindled investor worries of so-called "circular investments" that have seen AI companies investing in each other in recent years.
From Barron's ● Sep. 14, 2026
Its relationships with SoftBank, OpenAI and Nvidia stretch the possibilities of circular financing.
From The Wall Street Journal ● Sep. 10, 2026
Last year the contest was mired in scandal after it was noticed that some contestants' stones were suspiciously circular.
From BBC ● Sep. 4, 2026
Between whoops, the children nibbled on flat, circular cakes.
From "The Hidden Gallery" by Maryrose Wood
Dig through that stack of mail on your counter for circulars and search your email inbox for any grocery-store brand names to scope out advertised deals.
From MarketWatch ● May 22, 2026
If you’re looking for a specific brand or item, you can search for it instead of wading through dozens of printed circulars.
From Salon ● Feb. 11, 2025
BBC Verify searched all the circulars for 2008 and could find no reference to "informed choice" or "child prostitute" or any phrase similar to the one cited in the social media posts.
From BBC ● Jan. 9, 2025
Nestled inside the supermarket circulars inside the Food section was an 11-by-17-inch sheet of glossy white paper, folded in half and covered with row after row of Montgomery County addresses.
From Washington Post ● Apr. 25, 2022
Dream homes from real estate circulars and cats off 9-Lives.
From "Missing May" by Cynthia Rylant
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
