释义（英文）
专有名词 Proper noun
- (linguistics) Initialism of Proto-Indo-Aryan.
名词 Noun
- (medicine) Initialism of porcine intestinal adenomatosis.
- Initialism of personal injury accident.
- (Internet) Initialism of pain in the ass.
- (sexuality) Initialism of penis in anus.
- Initialism of privacy impact assessment.