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reason

Definition from Dictionary, a free dictionary
If thou wilt make a man happy, add not unto his riches but take away from his desires.
Epicurus
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English

Part or all of this page has been imported from the 1913 edition of Webster’s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.

Etymology

From Anglo-Norman resoun (Old French raison) < [[w:Template:lang:la language|Template:lang:la]][[Category:Template:lang:la derivations]] rationem, an accusative of ratio < reri, pp. of ratus (think)

Pronunciation

Noun

Singular
reason

Plural
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reason ({{{1}}})
  1. A thought or a consideration offered in support of a determination or an opinion; a just ground for a conclusion or an action; that which is offered or accepted as an explanation; the efficient cause of an occurrence or a phenomenon; a motive for an action or a determination; proof, more or less decisive, for an opinion or a conclusion; principle; efficient cause; final cause; ground of argument.
    He had no reason to do that.
  2. The faculty of capacity of the human mind by which it is distinguished from the intelligence of the inferior animals; the higher as distinguished from the lower cognitive faculties, sense, imagination, and memory, and in contrast to the feelings and desires. Reason comprises conception, judgment, reasoning, and the intuitional faculty. Specifically, it is the intuitional faculty, or the faculty of first truths, as distinguished from the understanding, which is called the discursive or ratiocinative faculty.
    Mankind should develop reason above all other virtues.
  3. Due exercise of the reasoning faculty; accordance with, or that which is accordant with and ratified by, the mind rightly exercised; right intellectual judgment; clear and fair deductions from true principles; that which is dictated or supported by the common sense of mankind; right conduct; right; propriety; justice.
    I was promised, on a time, To have reason for my rhyme. —Spenser
  4. (Template loop detected: Template:context 1) ratio; proportion.

Synonyms

Derived terms

Translations

Verb

Infinitive
to reason

Third person singular
-

Simple past
-

Past participle
-

Present participle
-

to reason (third-person singular simple present -, present participle -, simple past and past participle -)
  1. (intransitive) To exercise the rational faculty; to deduce inferences from premises; to perform the process of deduction or of induction; to ratiocinate; to reach conclusions by a systematic comparison of facts.
  2. (intransitive) Hence: To carry on a process of deduction or of induction, in order to convince or to confute; to formulate and set forth propositions and the inferences from them; to argue.
  3. (intransitive) To converse; to compare opinions.
  4. (transitive) To arrange and present the reasons for or against; to examine or discuss by arguments; to debate or discuss.
    I reasoned the matter with my friend.
  5. (transitive, Template loop detected: Template:context 1) To support with reasons, as a request.
  6. (transitive) To persuade by reasoning or argument.
    to reason one into a belief; to reason one out of his plan
  7. (transitive) To overcome or conquer by adducing reasons; — with down.
    to reason down a passion
  8. (transitive) To find by logical process; to explain or justify by reason or argument; — usually with out.
    to reason out the causes of the librations of the moon

Derived terms

Translations

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