fun

(noun) activities that are enjoyable or amusing. Synonyms: merriment, playfulness. Examples: "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). Synonyms: play, sport. Examples: "He became a figure of fun." "He said it in sport."

(noun) violent and excited activity. Examples: "She asked for money and then the fun began." "They began to fight like fun."

(noun) a disposition to find (or make) causes for amusement. Synonyms: playfulness. Examples: "Her playfulness surprised me." "He was fun to be with."