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.
Republicans rejected that reasoning. Caroline Cummings, CBS News, 8 Apr. 2026 The comments about Borom playing right guard, plus Campbell’s reasoning behind a potential Sewell move, point to a move this offseason. Colton Pouncy, New York Times, 7 Apr. 2026 Justices Sonia Sotomayor and Ketanji Brown Jackson concurred in the ruling but disagreed with some of the majority’s reasoning. ArsTechnica, 7 Apr. 2026 Developed by Google DeepMind, the four new versions of the Gemma 4 models emphasize coding, agentic AI, and improved reasoning, while supporting multimodal inputs and running across devices from smartphones to data centers. Jeremy Kahn, Fortune, 7 Apr. 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 8 Apr. 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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