Definitions

1. adjective

having or showing a strong and keen sense of smell or sight

“The keen sense of smell in the bloodhound helped it track the suspect.”

2. adjective

strong and sharp, with a cutting or piercing quality

“The keen edge of the knife cut through the rope easily.”

3. adjective

eager and enthusiastic, with a strong desire to do something

“She was keen to learn the new dance and practice every day.”

4. verb

to feel or show a strong sense of smell or sight

“The dog keen-ed the air, trying to locate its prey.”

5. noun

a sharp or pungent smell

“The keen of the gasoline filled the entire garage.”