1. a short humorous anecdote with a punch line. 2. anything said or done to provoke laughter or cause amusement. 3. something amusing or ridiculous: I don't see the joke in that. 4. an object of laughter or ridicule, esp. because of being inadequate or sham. 5. a trifling matter: The loss was no joke. 6. practical joke. More @Wikipedia
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