Gala

Adjective

 * 1) Celebratory; festive.

Noun

 * 1)  Pomp, show, or festivity.
 * 2)  A showy and festive party.

Thesaurus
ball, banquet, blowout, carnival, celebration, celebratory, cheerful, cheery, convivial, do, event, fair, feast, festal, festival, festive, festive occasion, festivity, fete, field day, fiesta, gala affair, gala day, gay, gladsome, gleeful, great doings, happening, happy, high jinks, hilarious, holiday, holy day, jamboree, jolly, jovial, joyful, joyous, kermis, merry, merrymaking, occasion, on the loose, pageant, party, picnic, red-letter day, waygoose, wayzgoose