joke

something said or done to provoke laughter or cause amusement, as a witticism, a short and amusing anecdote, or a prankish act.

something that is amusing or ridiculous, especially because of being ludicrously inadequate or a sham; a thing, situation, or person laughed at rather than taken seriously; farce.

a matter that need not be taken very seriously; trifling matter.

something that does not present the expected challenge; something very easy.

practical joke.

to speak or act in a playful or merry way.

to say something in fun or teasing rather than in earnest; be facetious.

to subject to jokes; make fun of; tease.

to obtain by joking.