# p.a.
## Noun (N)
### Sense: an electronic amplification system used as a communication system in public areas
- ระบบเสียงประกาศสาธารณะ

## Adverb (R)
### Sense: by the year; every year (usually with reference to a sum of money paid or received)
- ต่อปี
- ในแต่ละปี