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English definition of “sanity”

sanity

noun [U]     /ˈsæn.ɪ.ti/ US  /-ə.t̬i/
the state of having a healthy mind and not being mentally ill : He'd been behaving so strangely that they began to doubt / question his sanity. to keep / preserve / retain your sanityHealthiness of mind the fact of showing good judgment and understanding : The closer we got to the deadline for action , the more I questioned the sanity of the decision we had taken. Maybe Jenny can bring some sanity into this crazy situation .
(Definition of sanity noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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