Noun

(en noun)

The emotion usually following humour and accompanied by laughter; merriment; jollity; gaiety.

* 1883 ,

And he began to laugh again, and that so heartily, that, though I did not see the joke as he did, I was again obliged to join him in his mirth.

*, title=The Mirror and the Lamp

, chapter=2 citation , passage=She was a fat, round little woman, richly apparelled in velvet and lace, […]; and the way she laughed, cackling like a hen, the way she talked to the waiters and the maid, […]—all these unexpected phenomena impelled one to hysterical mirth , and made one class her with such immortally ludicrous types as Ally Sloper, the Widow Twankey, or Miss Moucher.}}

* 1912 , :

Their eyes met and they began to laugh. They laughed as children do when they cannot contain themselves, and can not explain the cause of their mirth to grown people, but share it perfectly together.

That which causes merriment.

* 1922 ,

Phantasmal mirth , folded away: muskperfumed.

Noun

(uncountable) A great amount of amusement, usually accompanied by laughter.

(countable) Something that induces laughter.

* 1999 , Vincent Canby, Janet Maslin and Peter M. Nichols, The New York times guide to the best 1000 movies ever made ,

Think it not curious if we don't seem to be as sidesplittingly impressed with the hilarities in this picture as its promotion might lead you to expect. Hilarity is in it—hilarity at its best—as would be almost mandatory in any film with Miss Holliday.

* 2005 , Library journal , Volume 130, Issues 8-13, Page 122,

Many other Latin imports have become staples of our diet, like the burrito, which in Spanish means "little donkey." What other food-related hilarities are we missing out on?