reason Definition

  • 1a cause, explanation, or justification for an action or event
  • 2the power of the mind to think, understand, and form judgments by a process of logic

Using reason: Examples

Take a moment to familiarize yourself with how "reason" can be used in various situations through the following examples!

  • Example

    The reason for his absence was not explained.

  • Example

    She gave no reason for her decision.

  • Example

    I can't see any reason why we shouldn't go ahead with the plan.

  • Example

    The reason I'm calling is to ask for your help.

reason Synonyms and Antonyms

Idioms Using reason

  • lose one's reason

    to become insane


    After the accident, he lost his reason and had to be hospitalized.

  • to explain or justify one's actions or decisions


    He refused to give reason for his sudden resignation.

  • for a good or valid reason


    She was angry with reason, as her work had been plagiarized.

Phrases with reason

  • to try to persuade someone to do something by explaining why it is sensible or right


    I tried to reason with him, but he wouldn't listen.

  • beyond reason

    impossible to explain or understand


    The amount of money they spent on the party was beyond reason.

  • to be persuaded by logical arguments


    I hope she'll listen to reason and change her mind.

Origins of reason

from Old French 'raison', from Latin 'ratio', meaning 'reckoning, understanding, motive'


Summary: reason in Brief

The term 'reason' [ˈriːzn] refers to a cause, explanation, or justification for an action or event, as well as the power of the mind to think, understand, and form judgments. It can be used in phrases like 'reason with someone,' meaning to persuade through logical arguments, and idioms like 'lose one's reason,' meaning to become insane. 'Reason' has synonyms like 'motive' and 'rationale,' and antonyms like 'unreason' and 'irrationality.'

How do native speakers use this expression?