p.a.

Noun p.a. has 1 sense

• p.a.(n = noun.artifact) p.a. system, pa, pa system, public address system - an electronic amplification system used as a communication system in public areas; Array
has parts: amplifier, loudspeaker, loudspeaker system, speaker, speaker system, speaker unit, tannoy
is a kind of communication system

Adverbial p.a. has 1 sense

• p.a.(r = adv.all) annually, each year, per annum, per year - by the year; every year (usually with reference to a sum of money paid or received); "he earned $100,000 per annum"; "we issue six volumes per annum"