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

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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
While pinning down the exact reason why these states buck the trend is difficult, Hoell hypothesized the region’s unique summer monsoon rains could alleviate the risk. Noah Haggerty, Los Angeles Times, 22 July 2026 James and others at Literacy Roundup believe there are hundreds of students across Tarrant County with undiagnosed dyslexia, which is one of the reasons for subpar reading scores in Fort Worth ISD and other neighboring districts. Samuel O’Neal 22, Fort Worth Star-Telegram, 22 July 2026
Verb
The update to Muse Spark beats out Google’s latest release of Gemini in benchmarks measuring coding and reasoning capabilities, according to the tech giant. Ben Weiss, Fortune, 9 July 2026 The outlet also highlights travelers’ reasoning behind specifically selecting window seats for their travels, including motion sickness, fear of flying or to keep children occupied. Natalia Senanayake, PEOPLE, 7 July 2026 See All Example Sentences for reason
Recent Examples of Synonyms for reason
Noun
  • Did anyone else think Andriy and Bobby’s explanation of what happened in the workroom felt patchy too?
    Roxana Hadadi, Vulture, 24 July 2026
  • An exploded sunfish spread out in the water in thousands of pieces is certainly easier to share, offering another possible explanation for this practice.
    Mindy Weisberger, CNN Money, 23 July 2026
Noun
  • That case focused mostly on the details of the knife attack itself; the federal one delves more into questions of motive.
    ABC News, ABC News, 22 July 2026
  • Whether Villa only wanted to loan Garnacho anyway is unclear, but there’s an obvious motive for not signing him permanently.
    Chris Weatherspoon, New York Times, 22 July 2026
Noun
  • Though the crime is a problem that needs to be addressed, Robinson said some of her neighbors are using it as an excuse to make racist comments.
    Fort Worth Star-Telegram, Fort Worth Star-Telegram, 28 July 2026
  • Many companies are laying off valuable employees, often blaming AI, but experts suggest AI frequently serves as an excuse for corporate restructuring or past overhiring.
    Peter D. Banko, Forbes.com, 27 July 2026
Noun
  • Federal grants can’t be canceled without cause, and the reliability of that funding was crucial, Miller said.
    Lisa Song, CNN Money, 28 July 2026
  • Additional hormone testing helps identify the underlying cause, and your doctor may order more tests to rule out other medical conditions.
    Samantha Agate, Kansas City Star, 28 July 2026
Noun
  • In that sense, the conditions included in the Garnacho deal must have a realistic possibility of not occurring in order for the deal to be recorded, at least initially, as a loan.
    Chris Weatherspoon, New York Times, 22 July 2026
  • With real couples, the sense of love and familiarity was already present.
    Jacqui Palumbo, CNN Money, 22 July 2026
Noun
  • Keep in mind, this Sporting team, over a stretch of eight matches in all competitions, was outscored 28-4, losing seven of those contests and drawing one.
    Kansas City Star, Kansas City Star, 23 July 2026
  • Her makeup was on and her wig was in place, but her mind was in meltdown.
    ABC News, ABC News, 23 July 2026
Noun
  • Perhaps the Codex Micro’s most interesting feature is a rotary dial that lets the user adjust the agent’s reasoning level depending on the difficulty of the task.
    New Atlas, New Atlas, 25 July 2026
  • Another study published in medRxiv put OpenEvidence to the test using the MedXpertQA dataset, which consists of complex, subspecialty board-style scenarios designed to challenge medical reasoning.
    Garth Friesen, Forbes.com, 25 July 2026
Verb
  • Confidence is highest for events whose relationship to a warming climate is well understood and well represented in climate models.
    Deepti Singh, The Conversation, 24 July 2026
  • Among all the senses, smell is perhaps the least well understood.
    Hannah Docter-Loeb, Scientific American, 24 July 2026

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Cite this Entry

“Reason.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/reason. Accessed 28 Jul. 2026.

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