Definition of reasonnext
1
as in explanation
a statement given to explain a belief or act she gave a good reason for her seemingly suspicious behavior

Synonyms & Similar Words

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2
as in motive
something (as a belief) that serves as the basis for another thing a firm belief that we are here on earth to help others is the reason for her tireless volunteer work

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reason

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verb

1
as in to understand
to form an opinion or reach a conclusion through reasoning and information she reasoned that since all of the cakes were on sale for the same price, she might as well pick the biggest one

Synonyms & Similar Words

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Synonym Chooser

How is the word reason different from other verbs like it?

Some common synonyms of reason are cogitate, deliberate, reflect, speculate, and think. While all these words mean "to use one's powers of conception, judgment, or inference," reason stresses consecutive logical thinking.

able to reason brilliantly in debate

When is it sensible to use cogitate instead of reason?

The meanings of cogitate and reason largely overlap; however, cogitate implies deep or intent thinking.

cogitated on the mysteries of nature

Where would deliberate be a reasonable alternative to reason?

The synonyms deliberate and reason are sometimes interchangeable, but deliberate suggests slow or careful reasoning before forming an opinion or reaching a conclusion or decision.

the jury deliberated for five hours

When is reflect a more appropriate choice than reason?

The words reflect and reason can be used in similar contexts, but reflect suggests unhurried consideration of something recalled to the mind.

reflecting on fifty years of married life

When can speculate be used instead of reason?

The words speculate and reason are synonyms, but do differ in nuance. Specifically, speculate implies reasoning about things theoretical or problematic.

speculated on the fate of the lost explorers

When would think be a good substitute for reason?

Although the words think and reason have much in common, think is general and may apply to any mental activity, but used alone often suggests attainment of clear ideas or conclusions.

teaches students how to think

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 reason
Noun
For someone who has historically struggled in races against the clock, this was reason to be optimistic. Chris Marshall-Bell, New York Times, 14 Sep. 2026 This quality of service at a massively low price is a good enough reason to make the switch, but the carrier is sweetening the pot. K. Thor Jensen, PC Magazine, 14 Sep. 2026
Verb
China is betting big on humanoid robots, which the nation’s technology leaders see as key agents in the race to artificial general intelligence (AGI) – an AI system with human-level ability to reason and act. Ann Scott Tyson, Christian Science Monitor, 28 Aug. 2026 The judge reasoned that the compromise would be enough to allow Seyb to practice without fear of possible prosecution without extending the original injunction to doctors who weren’t part of the lawsuit. Nicole Blanchard, Idaho Statesman, 27 Aug. 2026 See All Example Sentences for reason
Recent Examples of Synonyms for reason
Noun
  • Fans want to go inside, so just telling viewers the terms along with a one-line explanation goes a long way.
    Andrew Marchand, New York Times, 11 Sep. 2026
  • The documents provide explanations of the company’s advertising and privacy practices, as well as members’ rights and controls.
    Daniel Arkin, NBC news, 10 Sep. 2026
Noun
  • For Frankfurt, as for Murdoch, the work of being human involves interrogating the motives and assumptions that guide our actions, asking whether our desires are truly desirable.
    Meghan O’Gieblyn, New Yorker, 14 Sep. 2026
  • The victim’s name and details of a motive have not been released.
    Mark Price, Charlotte Observer, 14 Sep. 2026
Noun
  • Arteta and Arsenal had no need for excuses this time around, though, with Martin Odegaard scoring a late winner after a convincing team performance at the Stadio Diego Armando Maradona.
    Art de Roché, New York Times, 11 Sep. 2026
  • That’s not to make excuses, but to put in context, what is also a sputtering, screwball-y film about masculine roles in a waning patriarchal society.
    Beatrice Loayza, Variety, 11 Sep. 2026
Noun
  • The agriculture ministry said the cause of the decline in production was in part due to extreme summer heat waves and intensifying drought across the country that caused sunburn, berry shriveling, and foliage shedding.
    Claire Carter, The Washington Examiner, 7 Sep. 2026
  • The next turn of the screw came in 1933, with a congressional investigation of the causes of the 1929 crash.
    Business Columnist, Los Angeles Times, 7 Sep. 2026
Noun
  • Bieber and Gausman are the two names on this list that make the most sense to bring back.
    Mitch Bannon, New York Times, 9 Sep. 2026
  • Karrahboooo’s flow, kind of like Veeze or Lucki, manages to feel both laid back and conversational and deeply and intricately rhythmic, an almost enchanting combination made more potent by Karrahbooo’s almost dance-leaning sense of melody.
    Jeff Ihaza, Rolling Stone, 8 Sep. 2026
Noun
  • Each of its elements began, long ago, in the loamy earth, hatching and creeping or slipping, slick and squealing, from the womb of the mind.
    Literary Hub, Literary Hub, 10 Sep. 2026
  • The football mind was apparent during weekly preparation and the quick processing on the field at Oregon State.
    Zach Berman, New York Times, 9 Sep. 2026
Noun
  • Osteopathic philosophy serves as the integrative lens through which these domains influence clinical reasoning.
    Torie Bosch, STAT, 5 Sep. 2026
  • The State Bar did not disclose why the charges were dropped, and its reasoning for doing so remains under seal.
    Rebecca Ellis, Los Angeles Times, 4 Sep. 2026
Verb
  • Inspiration becomes more powerful when everyone understands their role.
    Tarot.com, Sun Sentinel, 12 Sep. 2026
  • This included finding stretches of joy amid the pain, and coming to understand her flaws without judgment or fear; in all that, the movie reveals how Tessa could’ve fallen for a charming guy like Julian before his violent betrayal.
    David Canfield, HollywoodReporter, 11 Sep. 2026

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Cite this Entry

“Reason.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/reason. Accessed 15 Sep. 2026.

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