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[seyn] /seɪn/
adjective, saner, sanest.
free from mental derangement; having a sound, healthy mind:
a sane person.
having or showing reason, sound judgment, or good sense:
sane advice.
sound; healthy.
Origin of sane
1620-30; < Latin sānus healthy
Related forms
sanely, adverb
saneness, noun
nonsane, adjective
nonsanely, adverb
nonsaneness, noun
Can be confused
sane, Seine.
2. reasonable, sensible, judicious, level-headed.


[seyn] /seɪn/
a private nationwide organization in the U.S., established in 1957, that opposes nuclear testing and advocates international peace.
official shortening of its by-name Committee for a Sane Nuclear Policy Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for sane
Contemporary Examples
Historical Examples
  • For which sane word, if not for all the pages of his poem, we may feel gratefully towards the writer.

    Robert Browning Edward Dowden
  • Never try to do sane and safe business when you're angry, gentlemen!

    Blow The Man Down Holman Day
  • Where amid this crazy dance of self-contradictory fanatics and fools was a sane man to find a place on which to stand?

    Hyacinth George A. Birmingham
  • Gorman took a sane, though I think incorrect, view of the situation.

    Gossamer George A. Birmingham
  • She was cheerful as well as sympathetic; she was sane beyond most young girls in her management of menmany men.

British Dictionary definitions for sane


sound in mind; free from mental disturbance
having or showing reason, good judgment, or sound sense
(obsolete) healthy
Derived Forms
sanely, adverb
saneness, noun
Word Origin
C17: from Latin sānus healthy
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for sane

1721, back-formation from sanity or else from Latin sanus "sound, healthy," in figurative or transferred use, "of sound mind, rational, sane," also, of style, "correct;" of uncertain origin. Used earlier, of the body, with the sense of "healthy" (1620s). Related: Sanely.

Online Etymology Dictionary, © 2010 Douglas Harper
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sane in Medicine

sane (sān)
Of sound mind; mentally healthy.

sane'ness n.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Related Abbreviations for sane


sulfur and nitrogen emissions
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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