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  • sane
    sane
    adjective
    free from mental derangement; having a sound, healthy mind.
  • SANE
    SANE
    noun
    a private nationwide organization in the U.S., established in 1957, that opposes nuclear testing and advocates international peace.
Synonyms

sane

1 American  
[sayn] / seɪn /

adjective

  • saner,
    comparative
  • sanest
    superlative
  1. free from mental derangement; having a sound, healthy mind.

    a sane person.

  2. having or showing reason, sound judgment, or good sense.

    sane advice.

    Synonyms:
    judicious, sensible, reasonable
  3. sound; healthy.


SANE 2 American  
[sayn] / seɪn /

noun

  1. a private nationwide organization in the U.S., established in 1957, that opposes nuclear testing and advocates international peace.


sane British  
/ seɪn /

adjective

  1. sound in mind; free from mental disturbance

  2. having or showing reason, good judgment, or sound sense

  3. obsolete 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

Other Word Forms

Derived Forms

Inflected Forms

Adjectives


Etymology

Origin of sane1

First recorded in 1620–30, sane is from the Latin word sānus healthy

Origin of SANE2

Official shortening of its byname Committee for a Sane Nuclear Policy


Explanation

A sane person doesn't have any screws loose — in other words, they're free of mental illness and in a reasonable state of mind. You probably know that the word insane means crazy. Well, the opposite of insane is sane — or not crazy. A sane person is of sound mind and is mentally healthy. Sane people have good judgment, are reasonable, and can tell the difference between what's real and imagined. Whenever someone commits a crime or does something totally outlandish, people usually wonder if they're sane or not.

Keep Reading on Vocabulary.com

Vocabulary lists containing sane

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Most sane people believe that needs to be addressed.

From MarketWatch ● Sep. 22, 2026

She was the only person who acted sane and brave that night.

From Los Angeles Times ● Sep. 4, 2026

In a sane world he would provide answers that could facilitate greater understanding of his actions and motivations, and how he believes those actions will benefit the American people.

From Salon ● Aug. 21, 2026

A public interest firm willing to carry the case without charge, because no sane person spends airplane money in legal fees to recover an airplane.

From Slate ● Jul. 28, 2026

If she were there, the cliffs, the brightening sky, the trees, the stag, the waterfall would suddenly snap into position around her, sane again, well organized; but she was not, and the morning was crazy.

From "Grendel" by John Gardner

“We wanted to highlight the very important and incredible work of a SANE, especially in the department setting,” she says.

From Los Angeles Times ● Feb. 19, 2026

Only seven wins had come in the "SANE" countries: South Africa, Australia, New Zealand and England.

From BBC ● Oct. 3, 2024

Shelley, a nurse in rural Eagle County, Colorado, went to her car and called a telehealth company to arrange an appointment with a sexual assault nurse examiner, or SANE.

From Seattle Times ● Jan. 8, 2023

The specialty includes sexual assault nurse examiners, known by the acronym SANE.

From Washington Times ● Mar. 30, 2015

SANE, J. MARTIN-, executor of the   Estate of Abel Bonnard.

From U.S. Copyright Renewals, 1963 July - December by Library of Congress. Copyright Office

In happier days—in a saner timeline—I could have played a round here.

From Slate ● Jun. 2, 2026

It’s a concept borrowed from restaurant service — those end-of-night tasks that set you up for a smoother, saner start the next day — and it immediately appealed to me.

From Salon ● Mar. 19, 2026

In time, I came up with a saner reply: “I’ll keep working,” I’d say, “as long as I can do my job reasonably well.”

From The Wall Street Journal ● Jan. 9, 2026

Indira, with the saner follow-up: “Dorothy, don’t get in the fight.”

From New York Times ● Jan. 9, 2024

I was also thinking that, as cooler observers around me had been cautioning, it would probably be saner, cheaper, and easier for Jesse to try for the University of Illinois in the fall.

From "Geeks: How Two Lost Boys Rode the Internet Out of Idaho" by Jon Katz

Lewis: What’s so funny is that Natalie’s actually maybe the sanest one.

From Los Angeles Times ● Mar. 23, 2023

“The sanest way forward — you have to learn how to split yourself up into other selves, like an earthworm,” her mentor advised her years earlier, when she was about to graduate.

From Washington Post ● Sep. 14, 2022

“Having a therapist has taught me to be less cruel to myself. It’s not like therapy has made me the world’s sanest person; it’s just made me slightly less insane.”

From Seattle Times ● Jul. 14, 2021

We can look at all of this and hope that our sanest elected officials will use their power to make life better for the whole realm.

From Salon ● Apr. 23, 2021

Some days I think I’m crazy to have done this; other times that it’s the sanest move I’ve made in years.

From "Cat's Eye" by Margaret Atwood

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