• A person who has the acute form of a disorder, such as schizophrenia.
  • An accent or tone higher than others.
  • An acute accent (´).


  • To give an acute sound to.
  • To make acute; to sharpen, to whet.


  • From Late Middle English acūte ("of a disease or fever: starting suddenly and lasting for a short time; of a humour: irritating, sharp"), from Latin acūta, from acūtus, perfect passive participle of acuō, from acus, from Proto-Indo-European *h₂eḱ- ("sharp"). The word is cognate to ague.
  • As regards the noun, which is derived from the verb, compare Middle English acūte ("severe but short-lived fever; of blood: corrosiveness, sharpness; musical note of high pitch").

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