- the faculty or power of acquiring intellectual knowledge, either by direct understanding of first principles or by argument.
- the power of intelligent and dispassionate thought, or of conduct influenced by such thought.
- Kantianism. the faculty by which the ideas of pure reason are created.
verb (used without object)
verb (used with object)
- rearview mirror,
- reason, age of,
Origin of reason
A similar charge of redundancy is made against the reason why, which is also a well-established idiom: The reason why the bill failed to pass was the defection of three key senators.
Examples from the Web for reason
The reason we were liberals is we were against oppression.Bill Maher: Hundreds of Millions of Muslims Support Attack on ‘Charlie Hebdo’|Lloyd Grove|January 8, 2015|DAILY BEAST
Yet, for god knows what reason, his name is never brought up in the “Great American Filmmaker” conversation.Oscars 2015: The Daily Beast’s Picks, From Scarlett Johansson to ‘Boyhood’|Marlow Stern|January 6, 2015|DAILY BEAST
Whatever the reason, and however absurd their beliefs may seem, American evangelicals are deadly serious.
For this reason, it is called by scholars “postmillennialism.”
It may have been the reason why Goldwater beat Rockefeller by three points, and effectively sewed up the GOP nomination.
What other reason could Dick have for the deception which he had practised upon us all?The Mystery of the Hidden Room|Marion Harvey
That is the reason why the artist cannot teach it, why the pupil cannot learn it, and why the æsthetic critic can understand it.Intentions|Oscar Wilde
In him, under every circumstance, we have every reason to be glad and to rejoice that we have him on our side.Journal of a Residence at Bagdad|Anthony Groves
That is, no doubt, the reason why he would take their good advice and go.
Indeed, my dear Faulkland, my sister has reason for her fears.Memoirs of Miss Sidney Biddulph|Frances Sheridan
Word Origin for reason
c.1200, "intellectual faculty that adopts actions to ends," also "statement in an argument, statement of explanation or justification," from Anglo-French resoun, Old French raison "course; matter; subject; language, speech; thought, opinion," from Latin rationem (nominative ratio) "reckoning, understanding, motive, cause," from ratus, past participle of reri "to reckon, think," from PIE root *re(i)- "to reason, count" (cf. Old English rædan "to advise; see read (v.)).
Meaning "sanity; degree of intelligence that distinguishes men from brutes" is recorded from late 13c. Sense of "grounds for action, motive, cause of an event" is from c.1300. Middle English sense of "meaning, signification" (early 14c.) is in the phrase rhyme or reason. Phrase it stands to reason is from 1630s. Age of Reason "the Enlightenment" is first recorded 1794, as the title of Tom Paine's book.
early 14c., resunmen, "to question (someone)," also "to challenge," from Old French raisoner "speak, discuss; argue; address; speak to," from Late Latin rationare "to discourse," from ratio (see reason (n.)). Intransitive sense of "to think in a logical manner" is from 1590s; transitive sense of "employ reasoning (with someone)" is from 1847. Related: Reasoned; reasoning.
see by reason of; in reason; it stands to reason; listen to reason; lose one's mind (reason); rhyme or reason; see reason; stand to reason; with reason.