1. wild, drunken celebrations or parties; revelries marked by excessive drinking and merrymaking
Usage: plural form; often used to describe uninhibited social gatherings
2. people who participate in wild, drunken celebrations
Usage: plural form; refers to the revelers themselves

Examples

• The college students threw bacchanals every weekend during spring break.
• Ancient Roman bacchanals were festivals dedicated to the god Bacchus.
• The wedding reception turned into one of the wildest bacchanals the town had ever seen.
• The bacchanals danced and sang late into the night.
• After the team's championship victory, the streets filled with bacchanals celebrating their win.
• The novel depicted the bacchanals of the wealthy elite in vivid detail.