public address system
P.A. system
PA system
P.A.
PA

"Get on the PA system and tell him to give up," said one agent.

The band played on, however, as the PA system was still operational.

In this case you may use a PA system only between the hours of 12.00 and 19.00.

This was changed in 1951, when the style scores started being announced over the PA system.

Try out the PA system on site; don't take the management's word that they'll do it for you.

Why don't you just call me over your PA system?

He had a thought and switched on the PA system.

An hour and forty-five minutes later, a male voice came over the PA system.

One black mark was the standard of the PA system on the day.

But he hadn't heard a code blue over the PA system yet.