群ぐん行こう

noun

carrying out in a large group; group action

Refers to doing something as a large group, often with a sense of collective movement or action. Not an everyday word; more likely in descriptive or literary contexts.

• 祭まつりでは、町まちの人ひと々びとが群ぐん行こうして神輿みこしを担かついだ。

  At the festival, the townspeople carried the portable shrine in a large group.