Meaning & use
derangement
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A state of madness or serious mental disturbance; also, the disruption of the normal order of something.
See it in a sentence
The character's derangement becomes increasingly apparent as the play progresses.
Engineers studied the derangement of the machine's internal components after the crash.
A note on using this word
Older legal and medical texts often use the phrase 'temporary derangement' to describe a brief episode of insanity.
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