A sweeping action is one that covers or includes many things at once. It's often used when talking about cleaning or clearing out a big space.
When we talk about something being sweeping, we usually mean it affects a wide area or group of people. For example, a law might be sweeping if it changes lots of rules all at once, instead of just making small adjustments. A new policy in a school could also be sweeping if it covers all the students and teachers, not just a few individuals. Sometimes, we use sweeping to describe something that's quite obvious or widely accepted – like how people generally agree on the importance of recycling.
present participle and gerund of sweep
