fun

 
Pronunciation: /fʌn/

noun

[mass noun]
  • enjoyment, amusement, or light-hearted pleasure: the children were having fun in the play area
  • a source of fun: people-watching is great fun
  • playfulness or good humour: she’s full of fun
  • behaviour or an activity that is intended purely for amusement and should not be interpreted as having any serious or malicious purpose: the column’s just a bit of fun

adjective

informal
  • amusing, entertaining, or enjoyable: it was a fun evening

verb (funs, funning, funned)

North American informal
  • joke or tease: [no object]: no need to get sore—I was only funning [with object]: they are just funning you

Phrases

for fun

(or for the fun of it)
in order to amuse oneself and not for any more serious purpose: I paint a bit for fun

fun and games

amusing and enjoyable activities: teaching isn’t all fun and games

in fun

not intended seriously; as a joke: remember when you meet the press to say that your speech was all in fun

make fun of

tease, laugh at, or joke about (someone) in a mocking or unkind way: she didn’t even notice he was making fun of her

not much (or a lot of) fun

used to indicate that something strikes one as extremely unpleasant and depressing: it can’t be much fun living next door to him

not one's idea of fun

used to emphasize one’s dislike for an activity or to mock someone else’s liking for it: being stuck behind a desk all day isn’t my idea of fun

what fun!

used to convey that an activity or situation sounds amusing or enjoyable: we’re going to build a snowman—what fun!

Origin:

late 17th century (denoting a trick or hoax): from obsolete fun 'to cheat or hoax', dialect variant of late Middle English fon 'make a fool of, be a fool', related to fon 'a fool', of unknown origin. Compare with fond

The use of fun as an adjective meaning ‘enjoyable,’ as in we had a fun evening, is now established in informal use. The comparative and superlative forms funner and funnest are sometimes used but should be restricted to very informal contexts.