English Reference
noun

reasoning

n.
US /ˈɹizənɪŋ/ UK /ɹˈiːzənɪŋ/ rea·son·ing UK spelling reasonings

  1. 01 B2 Upper Intermediate

    the process of thinking about something in a clear and sensible way.

    the action of thinking about something in a logical, sensible way to reach a conclusion.

    Simple

    I don't understand the reasoning behind your decision to quit your job.

    In context

    The committee's reasoning was based on a thorough analysis of the financial risks involved in the merger.

    Usage

    Often used with the preposition 'behind' to explain the cause of an action.

  2. 02 C1 Advanced Academic

    the reasons or arguments that someone uses to explain their ideas.

    a specific sequence of arguments or justifications used to support a particular viewpoint.

    Simple

    The lawyer presented his reasoning to the judge during the trial.

    In context

    The paper provides a detailed line of reasoning that challenges the traditional interpretation of the historical data.

    Usage

    Commonly appears in the phrase 'line of reasoning'.

Engineers like me hold several spatial relationships in their minds at once, reasoning about where things sit relative to one another across scales ranging from a city block to a whole watershed.

The Conversation· 6 Aug 2026

My 2024 research also shows that technology was most valuable when students used it to investigate scientific questions, test ideas, create models, work with classmates and explain their reasoning.

The Conversation· 30 Jul 2026
This entry
Level C1 · Advanced
Frequency Common
Updated