clown (noun)
1
A slapstick performance artist often associated with a circus and usually characterized by bright, oversized clothing, a red nose, face paint, and a brightly colored wig.
2
A person who acts in a silly fashion.
3
A stupid or badly-behaved person.
4
A clownfish.
clown (verb)
1
(intransitive) To act in a silly or playful fashion.
2
(transitive, African-American Vernacular) To ridicule.