agon - a festivity in ancient Greece at which competitors contended for prizes

diversion, recreation - an activity that diverts or amuses or stimulates; "scuba diving is provided as a diversion for tourists"; "for recreation he wrote poetry and solved crossword puzzles"; "drug abuse is often regarded as a form of recreation"

jollification, merrymaking, conviviality - a boisterous celebration; a merry festivity

feria - (in Spanish speaking regions) a local festival or fair, usually in honor of some patron saint

festival, fete - an organized series of acts and performances (usually in one place); "a drama festival"

gala, gala affair, jamboree, blowout - a gay festivity

Ludi Saeculares, secular games - the centennial rites and games of ancient Rome that marked the commencement of a new generation (100 years representing the longest life in a generation); observances may have begun as early as the 5th century BC and lasted well into the Christian Era

victory celebration - a celebration following a victory in a battle or sports competition