HSK C7-9
Correct

锐

/ ruì / 
Strokes

Definition

acute

Example

As an Adjective
(of objects) sharp; keen; acute; pointed
As an Adjective
(of senses) sharp; keen; acute; sensitive; (of persons) energetic; robust; potent; vivacious
As a Noun
vigour; vitality; keenness; fighting spirit; strength
As an Adverb
rapidly; suddenly