reason

Noun
  1. A rational motive for a belief or action (synset 109201896)
    "the reason that war was declared"; "the grounds for their declaration"
    is a type of: rational motive - a motive that can be defended by reasoning or logical argument
    subtypes:
    • occasion - reason
    • account, score - grounds
    • wherefore, why - the cause or intention underlying an action or situation, especially in the phrase `the whys and wherefores'
    same as: ground
  2. An explanation of the cause of some phenomenon (synset 106752739)
    "the reason a steady state was never reached was that the back pressure built up too slowly"
    is a type of: account, explanation - a statement that makes something comprehensible by describing the relevant structure or operation or circumstances etc.
  3. The capacity for rational thought or inference or discrimination (synset 105659525)
    "we are told that man is endowed with reason and capable of distinguishing good from evil"
    is a type of: faculty, mental faculty, module - one of the inherent cognitive or perceptual powers of the mind
    same as: intellect, understanding
  4. The state of having good sense and sound judgment (synset 114403234)
    "his rationality may have been impaired"; "he had to rely less on reason than on rousing their emotions"
    is a type of: saneness, sanity - normal or sound powers of mind
    same as: rationality, reasonableness
  5. A justification for something existing or happening (synset 106753097)
    "he had no cause to complain"; "they had good reason to rejoice"
    is a type of: justification - a statement in explanation of some action or belief
    same as: cause, grounds
  6. A fact that logically justifies some premise or conclusion (synset 105827293)
    "there is reason to believe he is lying"
    is a type of: fact - a piece of information about circumstances that exist or events that have occurred
    subtypes:
    • indication - (medicine) a reason to prescribe a drug or perform a procedure
    • contraindication - (medicine) a reason that makes it inadvisable to prescribe a particular drug or employ a particular procedure or treatment
Verb
  1. Decide by reasoning;
    Draw or come to a conclusion (synset 200636134)
    "We reasoned that it was cheaper to rent than to buy a house"
    is a type of: cerebrate, cogitate, think - use or exercise the mind or one's power of reason in order to make inferences, decisions, or arrive at a solution or judgments
    subtypes:
    same as: conclude, reason out
  2. Present reasons and arguments (synset 200774234)
    is a type of: lay out, present, represent - bring forward and present to the mind
    subtypes:
    same as: argue
  3. Think logically (synset 200634289)
    "The children must learn to reason"
    is a type of: cerebrate, cogitate, think - use or exercise the mind or one's power of reason in order to make inferences, decisions, or arrive at a solution or judgments
    subtypes:

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