joker

nouns

a person who enjoys telling or playing jokes
joker, jokester
is derived from
joke
is derived from
joke
a person who does something thoughtless or annoying
"some joker is blocking the driveway"
joker, turkey
an inconspicuous clause in a document or bill that affects its meaning in a way that is not immediately apparent
"when I demanded my money he showed me the joker in the contract"
joker
is a type of (narrower)
a separate section of a legal document (as a statute or contract or will)
article, clause
a playing card that is usually printed with a picture of a jester
joker
is a type of (narrower)
one of a pack of cards that are used to play card games
playing card