grand banquet; sumptuous feast
A formal or literary term for a lavish banquet or feast. Often used in written descriptions or formal invitations.
国王は来賓のために盛宴を催した。
The king held a grand banquet for the guests.
Compound of 盛 (prosperous, grand) and 宴 (banquet, feast). The exact historical derivation is uncertain, but the spelling is conventionally associated with a lavish feast.