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
See also
- Acutance, in photography, subjective perception of sharpness related to the edge contrast of an image
- Acuity (disambiguation)