A professional entertainer in the medieval and Renaissance eras who was employed to amuse a king or nobleman, often by telling jokes, performing tricks, or wearing a colorful costume.

The jester entertained the court with his witty jokes and acrobatics.

A person who habitually plays the fool or acts in a humorous or playful manner.

He was the jester of the group, always making everyone laugh with his antics.

jesteradjective

Relating to, characteristic of, or suitable for a jester; clownish or playful in style.

He wore a jester hat with bells for the parade.