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

Relevance
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

Synonyms & Similar Words

3
4
5
6
7

reason

2 of 2

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

2

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
The reason why is that demand won't evaporate if a neocloud goes under. — Zev Fima, CNBC, 26 Oct. 2026 Still, Jane had good reason to expect that the famous author would make time to pay her a visit. — Literary Hub, 26 Oct. 2026
Verb
An agent may reason, invoke tools, call multiple models, access data and trigger downstream actions to complete a task. — Jesse Stockall, Forbes.com, 20 Oct. 2026 Aside from having great weather, California is also a hotbed for innovation, Huang has reasoned. — Emma Burleigh, Fortune, 20 Oct. 2026 See All Example Sentences for reason
Recent Examples of Synonyms for reason
Noun
  • The likelier explanation, Seth said, is that the models have absorbed a great deal of information about how humans describe and respond to pain and are reproducing it.
    — Shae Lake, Fortune, 22 Oct. 2026
  • When two upcoming shows in Chicago were canceled without explanation, Hall released a statement.
    — Jack Denton, Vulture, 22 Oct. 2026
Noun
  • No group immediately claimed responsibility for the attack; the attackers’ motive remained unknown.
    — Omar Akour, Los Angeles Times, 27 Oct. 2026
  • Detectives are working to determine a motive and identify the shooter.
    — Shambhavi Rimal, Fort Worth Star-Telegram, 25 Oct. 2026
Noun
  • No, there's no excuse for the season going off the rails this much.
    — Ian Miller OutKick, FOXNews.com, 26 Oct. 2026
  • Rubio warns against delaying transition Speaking on the record during the question-and-answer portion of the call, Rubio insisted that Washington would not allow the institutional reforms to become an excuse for postponing elections indefinitely.
    — Antonio María Delgado, Miami Herald, 26 Oct. 2026
Noun
  • Anderson said the man appeared to have died of natural causes and that no foul play was suspected.
    — Alene Tchekmedyian, Los Angeles Times, 26 Oct. 2026
  • Brain games, crosswords and math puzzles are often promoted as ways to sharpen memory, but neurologists warn that generic exercises may not address the specific cause of mental fog.
    — Khloe Quill, FOXNews.com, 25 Oct. 2026
Noun
  • The tightness of White’s control over his arrangements can occasionally foreclose the sense of chaotic freedom inherent to his more collaborative efforts.
    — Ryan Meehan, Pitchfork, 26 Oct. 2026
  • This approach was meant to counter Vucic's one-man rule and restore a sense of community and solidarity.
    — JOVANA GEC, Arkansas Online, 26 Oct. 2026
Noun
  • Standing in the cereal aisle with a cart full of hungry kids on your mind, that price gap between the name-brand box and the one right next to it hits different these days.
    — Ashley Lynch, Charlotte Observer, 27 Oct. 2026
  • The high cost of healthcare is hitting Minnesotans hard, and the issue is top of mind for many voters just eight days before the midterm elections.
    — Caroline Cummings, CBS News, 27 Oct. 2026
Noun
  • Instead, applicants must complete a seven-step process that includes personality and abstract reasoning tests.
    — Sam Birchall, Fortune, 23 Oct. 2026
  • The system is built to produce deterministic outputs, trace the reasoning behind them, and apply the same underlying logic consistently across mortgage files.
    — Ethan Stone, Sacbee.com, 22 Oct. 2026
Verb
  • The findings could help scientists understand how electrons behave under intense electric fields and develop new ways to control electronic materials using light.
    — Neetika Walter, Interesting Engineering, 29 Oct. 2026
  • Most state lawmakers understand this, but some pivotal decisions are being made by the Federal Communications Commission (FCC).
    — Max Harden, The Orlando Sentinel, 29 Oct. 2026

Browse Nearby Words

Cite this Entry

“Reason.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/reason. Accessed 29 Oct. 2026.

More from Merriam-Webster on reason

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