reasoning

noun

rea·​son·​ing ˈrēz-niŋ 

ˈrē-zᵊn-iŋ

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

Synonyms of reasoning

• logic
• reason

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

Rather than test abstract reasoning or mathematical puzzles, APEX evaluates large models on 200 tasks drawn from the workflows of investment bankers, lawyers, consultants, and physicians. —Eva Roytburg, Fortune, 12 Nov. 2025

Reports about the reasoning are conflicting. —Lizzie Lanuza, StyleCaster, 12 Nov. 2025

Will all the houses be like that and what is the reasoning behind such a tie to the location when the overall idea is to experience Netflix IP in each of these venues? —Jennifer Maas, Variety, 10 Nov. 2025

Quanta spoke to Heule about the difference between machine and human reasoning, how SAT’s simplicity is its secret weapon, and why understanding is overrated in mathematics. —Quanta Magazine, 10 Nov. 2025

Word History

First Known Use

14th century, in the meaning defined at sense 1

Phrases Containing reasoning

• line of reasoning

Rhymes for reasoning

• seasoning

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