Look up acute in Wiktionary, the free dictionary.

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