1A remark or story not meant seriously, said to make people laugh or lighten the mood.
「宝くじが当たった」と言ったら、みんな冗談だと思って笑った。
When I said "I won the lottery," everyone thought it was a joke and laughed.
彼は冗談が好きで、会議中でもよく笑いを取る。
He loves jokes and often gets laughs even during meetings.
その冗談は面白すぎて、しばらく笑いが止まらなかった。
That joke was so funny that I couldn't stop laughing for a while.
冗談のつもりで言ったのに、本気にされて困った。
I meant it as a joke, but they took it seriously and I didn't know what to do.