Meaning of “sane” in the English Dictionary

american-english dictionary
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"sane" in British English

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saneadjective

uk /seɪn/ us /seɪn/

C2 having a healthy mind and not mentally ill:

In the doctor's opinion he was sane at the time of the murder.
humorous The only thing which keeps me sane after a hard day in the office is jogging!

C2 showing good judgment and understanding:

It was a sane decision and one we all respected.

(Definition of “sane” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"sane" in American English

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saneadjective [ -er/-est only ]

us /seɪn/

having a reasonable or healthy mind, or showing good judgment and understanding:

Your work, he said, is the one thing that keeps you sane in this crazy world.
sanity
noun [ U ] us /ˈsæn·ɪ·t̬i/

He was beginning to doubt his own sanity.

(Definition of “sane” from the Cambridge Academic Content Dictionary © Cambridge University Press)