funny

from The American Heritage® Dictionary of the English Language, 5th Edition.

• adjective Causing laughter or amusement.
• adjective Making or given to making amusing jokes or witticisms.
• adjective Appropriate as the subject of a joke; deserving of a joke. Used in negative sentences to express disapproval or to emphasize the seriousness of something.
• adjective Difficult to account for; unusual or odd.
• adjective Suspiciously odd.
• adjective Counterfeit or fraudulent.
• adjective Informal Somewhat ill, painful, or abnormal.
• adjective Offensively forward or disrespectful.
• adjective Contrary to one's demands or expectations.
• noun A joke; a witticism.
• noun Comic strips.
• noun The section of a newspaper containing comic strips.

from The Century Dictionary.

• Such as to afford fun or excite mirth; amusing; comical; ludicrous.
• Such as to cause surprise or perplexity; curious; strange; odd; queer: as, it is funny he never told me of his marriage.
• Synonyms Comical, Laughable, etc. See ludicrous.
• noun A light clinker-built pleasure-boat, with a pair of sculls. It is long and narrow, and is used for racing.

from the GNU version of the Collaborative International Dictionary of English.

• noun engraving A clinkerbuit, narrow boat for sculling.
• adjective Droll; comical; amusing; laughable; inciting laughter.
• adjective See crazy bone, under Crazy.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun humorous A joke.
• noun UK A narrow boat for sculling.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• adjective not as expected
• adjective beyond or deviating from the usual or expected
• adjective experiencing odd bodily sensations
• noun an account of an amusing incident (usually with a punch line)
• adjective arousing or provoking laughter