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  1. rea·son
  2. noun


    • 1. think, understand, and form judgments by a process of logic:

      humans do not reason entirely from facts
      Synonym : think rationally, think logically, think straight, use one's mind, use one's common sense, use one's head, use one's brain, think things through, cogitate, intellectualize, put on one's thinking cap, cerebrate, ratiocinate, logicize, calculate, come to the conclusion, conclude, reckon, think, consider, be of the opinion, be of the view, judge, deduce, infer, surmise, figure
    • 2. find an answer to a problem by considering various possible solutions:

      she was growing too sleepy to reason it out
      Synonym : work out, find an answer/solution to, think through, come to a conclusion about, sort out, make sense of, get to the bottom of, puzzle out, solve, figure out
    • 3. persuade (someone) with rational argument:

      I tried to reason with her, but without success
      Synonym : talk around, bring around, persuade, coax, prevail on, convince, show someone the error of their ways, make someone see the light
  3. Variation

    • n.: noun: reason, plural noun: reasons

    • noun

      a cause, explanation, or justification for an action or event:

      good or obvious cause to do something:

    • verb

      think, understand, and form judgements logically:

      find an answer to a problem by considering possible options:

    • adjective

      underpinned by logic or good sense:
    • adjective

      based on logic or good sense:
    • to a foolishly excessive degree
    • to a foolishly excessive degree
    • noun

      the principle (associated particularly with G.W. Leibniz) that all events must ultimately be explicable in terms of the reasons a divine being would have had for choosing one alternative rather than another.
    • logical explanation or reason
    • because of
    • to a foolishly excessive degree
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