acute

What is the Definition of acute?

Noun:

1. a mark placed above a vowel to indicate pronunciation

Adjective:

1. having or experiencing a rapid onset and short but severe course
2. extremely sharp or severe
3. having or demonstrating ability to recognize or draw fine distinctions
4. of an angle; less than 90 degrees
5. ending in a sharp point
6. of critical importance and consequence
7. or critical

Other meanings of acute (synonyms, cognates).