noun
great gathering; large assembly
Used for a large-scale gathering of people, things, or characters, often with a sense of excitement or comprehensiveness.
人気キャラクターが大集合したイベントが開かれた。
An event was held where popular characters gathered in large numbers.
会場には全国からファンが大集合した。
Fans from all over the country gathered in great numbers at the venue.