n. 1 lively or playful amusement. 2 source of this. 3 mockery, ridicule (figure of fun). attrib. adj. colloq. amusing, enjoyable (a fun thing to do). o for fun (or for the fun of it) not for a serious purpose. in fun as a joke, not seriously. make fun of (or poke fun at) ridicule, tease. [obsolete fun, fon: related to FOND]
