fun
noun.
activities that are enjoyable or amusing
I do it for the fun of it|he is fun to have around
noun.
verbal wit or mockery (often at another's expense but not to be taken seriously)
he became a figure of fun|he said it in sport
Synonym: play, sport
noun.
violent and excited activity
she asked for money and then the fun began
noun.
a disposition to find (or make) causes for amusement
her playfulness surprised me|he was fun to be with
Synonym: playfulness