Having a lot going on; complicated or intricate.
Officious; meddling.
Engaged in activity or by someone else.
Crowded with business or activities; having a great deal going on.
A police officer.
To rush somebody.
To make somebody busy or active; to occupy.
Being very important, or key to something.
Having or containing the centre of something.
Being in the centre.
Exerting its action towards the peripheral organs.
centre