Definition of lose one's mind/sanity
- She wondered if she was losing her mind/sanity.
: to bring to destruction
: to miss from one's possession or from a customary or supposed place
: recollection, memory
: the element or complex (see 1complex 1) of elements in an individual that feels, perceives, thinks, wills, and especially reasons
: the conscious mental events and capabilities in an organism
: to attend to closely
: the quality or state of being sane
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