大餐用英语可以表示为：a banquet。它的来源源自于拉丁文，最初指的是由统治者为客人提供的大型宴会。在现代英语中，大餐通常指在特殊场合为许多人提供的丰盛的饮食。

例句：

The couple hosted a lavish banquet to celebrate their wedding. (这对夫妇举办了一场盛大的宴会来庆祝他们的婚礼。)

The company's annual banquet is a chance for employees to come together and celebrate their successes. (公司的年度宴会是员工们汇聚一堂，庆祝成功的机会。)

The emperor was known for throwing lavish banquets in his palace. (皇帝以在他的宫殿里举办盛大的宴会而闻名。)