acute

C1 · Advanced Formal

adj. describing a mind or sense that is very quick to notice small details.

adj. characterized by sharpness of intellect or perception; showing an ability to understand complex situations quickly.

日本語:鋭い※

“Dogs have an acute sense of smell that helps them find hidden items.”

“Her acute observations regarding the company's fiscal vulnerabilities allowed the board to intervene before the market crashed.”

C1 · Advanced Medicine Technical

adj. describing an illness that starts suddenly and lasts for a short time.

adj. referring to a condition with a rapid onset and a short course, as opposed to a chronic condition.

日本語:急性※

“He was admitted to the hospital with acute appendicitis.”

“Distinguishing between acute and chronic symptoms is essential for determining the appropriate course of emergency treatment.”

B2 · Upper Intermediate Mathematics

adj. describing an angle that is less than 90 degrees.

adj. denoting an angle of less than 90 degrees or a triangle with all internal angles measuring less than 90 degrees.

Español:agudo

“The roof was built at an acute angle to help the snow slide off.”

“The architect utilized acute angles in the building's facade to create a sense of dynamic movement and modernism.”

C2 · Proficiency Countable noun Linguistics Technical

n. the small mark (´) placed over a letter to show how it is pronounced.

n. a diacritical mark used in various languages to indicate vowel quality, length, or pitch.

“The word 'café' is written with an acute on the final letter.”

“In French orthography, the acute appears exclusively over the letter 'e' to indicate a specific close-mid vowel sound.”