[ seyn ]
See synonyms for sane on
adjective,san·er, san·est.
  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.

  1. sound; healthy.

Origin of sane

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

Other words for sane

Other words from sane

  • sanely, adverb
  • saneness, noun
  • non·sane, adjective
  • non·sane·ly, adverb
  • non·sane·ness, noun

Words that may be confused with sane

Words Nearby sane

Other definitions for SANE (2 of 2)

[ seyn ]

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

Origin of SANE

Official shortening of its byname Committee for a Sane Nuclear Policy Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use sane in a sentence

British Dictionary definitions for sane


/ (seɪn) /

  1. sound in mind; free from mental disturbance

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

  1. obsolete healthy

Origin of sane

C17: from Latin sānus healthy

Derived forms of sane

  • sanely, adverb
  • saneness, noun

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