To study and observe closely what exactly goes on during that day.

You will be closely observed, not always by those who have your interests at heart.

It will be very well received by those who closely observe the way that we do our business.

The whole world will be closely observing what happens in Europe.

"And during that time you have had many opportunities of observing closely not only his work but the man himself?"

They may never have closely observed the play, perhaps thinking it was boring or just something to keep the children out of their way.

A tape would be listened to, a film observed closely.

"We will have put this management on notice that its actions are being closely observed."

I observed closely from outside the door: Not one child was pestering the other.

It is one of the most closely observed storms ever, its eye was studied for research.