Noun

(uncountable) Joy; merriment; mirth; gaiety; particularly, the mirth enjoyed at a feast.

*

* {{quote-magazine, date=2013-06-29, volume=407, issue=8842, page=55, magazine=(The Economist)

, title= Travels and travails , passage=Even without hovering drones, a lurking assassin, a thumping score and a denouement, the real-life story of Edward Snowden, a rogue spy on the run, could be straight out of the cinema. But, as with Hollywood, the subplots and exotic locations may distract from the real message: America’s discomfort and its foes’ glee .}}

(uncountable) Music; minstrelsy; entertainment.

(music, countable) An unaccompanied part song for three or more solo voices, not necessarily merry.

Noun

(uncountable)  The state of being happy.

* {{quote-book, year=1963, author=(Margery Allingham)

, title=(The China Governess) , chapter=2 citation , passage=Now that she had rested and had fed from the luncheon tray Mrs. Broome had just removed, she had reverted to her normal gaiety .  She looked cool in a grey tailored cotton dress with a terracotta scarf and shoes and her hair a black silk helmet.}}

(countable)  Merrymaking or festivity.