盛会 (shèng huì): Grand occasion / grand gathering (Noun) — Meaning & Stroke Order

This is a grand event.

He did not regard this celebration as a grand occasion that he must attend.

Despite the massive publicity, that event was far from being a grand gathering.

This cultural festival is a splendid grand event.

I heard the anime convention this weekend is a grand occasion; let's go check it out together.