PA به انگلیسی
From Longman Dictionary
PA /ˌpiː ˈeɪ/ noun [countable]
electronic equipment that makes someone’s voice loud enough to be heard by large groups of people
someone who works as a secretary for one person
Example
He once had the impossible job of being PA to Ted Heath in sulphurous exile
The songs are allowed a life of their own and, dodgy PA permitting, it works splendidly
Another announcement emerged from the PA system, sending more passengers to the gates to have their tickets punched
Two players dance to the rap music coming over the PA system
There was a hiss over the PA, followed by the chirruping of recorded birdsong