"jests" in the noun sense
1. joke, gag, laugh, jest, jape
a humorous anecdote or remark intended to provoke laughter
"he told a very funny joke"
"he knows a million gags"
"thanks for the laugh"
"he laughed unpleasantly at his own jest"
"even a schoolboy's jape is supposed to have some ascertainable point"
2. jest, joke, jocularity
activity characterized by good humor
"jests" in the verb sense
1. joke, jest
tell a joke speak humorously
"He often jokes even when he appears serious"
2. joke, jest
act in a funny or teasing way
Source: WordNet® (An amazing lexical database of English)
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