noun, noun or participle which takes 'suru', adverb, intransitive verb
in full force; in great numbers; in droves
Describes a large group moving or acting together, often with a sense of overwhelming scale. Commonly used as an adverb with する or 押し寄せる.
観光客が大挙して押し寄せた。
Tourists came flooding in in droves.
敵軍
The enemy army attacked in full force.
noun
large-scale project; grand plan
Rare noun usage referring to a major undertaking or ambitious plan. Not commonly used in modern conversation; more often seen in historical or formal contexts.
これは国家の大挙である。
This is a grand national project.