reasoning

noun

rea·​son·​ing ˈrēz-niŋ How to pronounce reasoning (audio)
ˈrē-zᵊn-iŋ
Synonyms of reasoningnext
1
: the use of reason
especially : the drawing of inferences or conclusions through the use of reason
2
: an instance of the use of reason : argument

Examples of reasoning in a Sentence

Could you explain your reasoning? They told everyone the reasoning behind the decision. a conclusion based on fallacious reasoning Humans possess the power of reasoning.
Recent Examples on the Web
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.
Moral certainty replaces moral reasoning. Rabbi Bruce D. Forman, Sun Sentinel, 10 Feb. 2026 Participants in the experimental group partook in one of three kinds of brain training − speed, memory or reasoning − twice per week for 60 to 75 minutes per session over five weeks. Mary Walrath-Holdridge, USA Today, 10 Feb. 2026 These are models engineered for precision, cost efficiency, and sound reasoning rather than endless computation. Abhas Ricky, Fortune, 10 Feb. 2026 Physical-space reasoning adds another layer. Aamir Khollam, Interesting Engineering, 10 Feb. 2026 See All Example Sentences for reasoning

Word History

First Known Use

14th century, in the meaning defined at sense 1

Time Traveler
The first known use of reasoning was in the 14th century

Browse Nearby Words

Cite this Entry

“Reasoning.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/reasoning. Accessed 15 Feb. 2026.

Kids Definition

reasoning

noun
rea·​son·​ing
1
: the use of reason
2
: the reasons used in and the proofs that result from thought : argument

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