fun
Americannoun
verb (used with or without object)
adjective
-
Informal. of or relating to fun, especially to social fun.
a fun thing to do; really a fun person; the funnest game.
-
Informal. whimsical; flamboyant.
The fashions this year are definitely on the fun side.
idioms
-
for / in fun, as a joke; not seriously; playfully.
His insults were only in fun.
-
make fun of, to make the object of ridicule; deride.
The youngsters made fun of their teacher.
-
like fun, certainly not; of doubtful truth.
He told us that he finished the exam in an hour. Like fun he did!
noun
-
a source of enjoyment, amusement, diversion, etc
-
pleasure, gaiety, or merriment
-
jest or sport (esp in the phrases in or for fun )
-
facetious amusement; frivolous activity
-
informal
-
(adverb) quickly; vigorously
-
(interjection) not at all! certainly not!
-
-
to ridicule or deride
-
(modifier) full of amusement, diversion, gaiety, etc
a fun sport
verb
Etymology
Origin of fun
First recorded in 1675–85; dialectal variant of obsolete fon “to befool”; fond 1 ( def. )
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
It was basically a mock recruitment song for the CIA, poking fun at the damage the CIA has done around the world.
From Los Angeles Times
The Emmerdale star recalled how the pair shared "many, many happy times to begin with and together we did have so much fun".
From BBC
This is a logic puzzle my brain can’t quite solve—and not the fun kind of logic puzzle, either.
From Literature
![]()
“Though it’s really fun and satisfying and fulfilling,” Kim says, “my body gets destroyed.”
The Frankenstein director is one of the only stars pulling a fun pose this year, with his outstretched arms making him the highlight of the front row.
From BBC
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.