(noun, adjective, verb)


1. having or experiencing a rapid onset and short but severe course

- acute appendicitis

- the acute phase of the illness

- acute patients

Similar word(s): subacute

2. extremely sharp or severe

- acute pain

- felt acute annoyance

Similar word(s): sharp, intense

3. having or demonstrating ability to recognize or draw fine distinctions

- an acute observer of politics and politicians

Similar word(s): perceptive, discriminating, incisive, keen, knifelike, penetrating, penetrative, piercing, sharp

4. of an angle; less than 90 degrees

5. ending in a sharp point

Similar word(s): pointed, acuate, needlelike, sharp

6. of critical importance and consequence

- an acute (or critical) lack of research funds

Similar word(s): critical

Sentences with acute as an adjective:

- His need for medical attention was acute.

- She had an acute sense of honor.

- It was an acute event.

- He dropped dead of an acute illness.

- The acute symptoms resolved promptly.

- The last letter of “café” is ‘e’ acute.

- an acute tone or accent


1. a mark placed above a vowel to indicate pronunciation

Similar word(s): ague

Definition categories: communication, accent

Sentences with acute as a noun:

- The word “cafe” often has an acute over the ‘e’.


1. (phonetics) To give an acute sound to.

- He acutes his rising inflection too much.