What is the meaning of Reason?

A cause:

  1. That which causes something: an efficient cause, a proximate cause.

    That which causes something: an efficient cause, a proximate cause.

    A motive for an action or a determination.

    An excuse: a thought or a consideration offered in support of a determination or an opinion; that which is offered or accepted as an explanation.

    A premise placed after its conclusion.

    Rational thinking (or the capacity for it); the cognitive faculties, collectively, of conception, judgment, deduction and intuition.

    Something reasonable, in accordance with thought; justice.

    Ratio; proportion.

    To deduce or come to a conclusion by being rational

    To perform a process of deduction or of induction, in order to convince or to confute; to argue.

    To converse; to compare opinions.

    To arrange and present the reasons for or against; to examine or discuss by arguments; to debate or discuss.

    To support with reasons, as a request.

    To persuade by reasoning or argument.

    To overcome or conquer by adducing reasons.

    To find by logical process; to explain or justify by reason or argument.

    A wall plate.

    Source: wiktionary.org