p.a.
adverb
- 1
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
noun
- 1
an electronic amplification system used as a communication system in public areas
he earned $100,000 per annum
we issue six volumes per annum
Also useful for “p.a.”:Unscrambler— Turn loose letters into real words