Describes something done on a large scale, with great scope, or in a grand manner. Often used for events, campaigns, renovations, or changes.
The company launched a large-scale campaign.
駅前の再開発が大々的に行われている。
A large-scale redevelopment is being carried out in front of the station.
They advertised the new product on a large scale.
The incident was extensively reported on TV.
The company launched a large-scale campaign.
They celebrated the launch of the new product in grand fashion.