noun
opening of a banquet; opening of a reception
Refers to the formal start of a banquet, wedding reception, or similar celebratory gathering. Often used in invitations, programs, or announcements.
開宴は午後6時を予定しております。
The banquet is scheduled to begin at 6 p.m.
新郎新婦の入場をもって開宴となります。
The reception will open with the entrance of the bride and groom.