Acute

Acute may refer to:

Language

 * Acute accent, a diacritic used in many modern written languages
 * Acute (phonetic), a perceptual classification

Science and mathematics

 * Acute angle
 * Acute triangle
 * Acute, a leaf shape in the glossary of leaf morphology
 * Acute (medicine), a disease that it is of short duration and of recent onset.
 * Acute toxicity, the adverse effects of a substance from a single exposure or in a short period of time