| Acronym | Meaning |
 | PA | Pascal - Protactinium |
| PLCC | Plastic Leaded Chip Carrier (electronics) |
| PG | Papua New Guinea (ISO 3166 Digram) -Parental Guidance (rating) |
| ICMP | Internet Control Message Protocol |
| KNVB | Koninklijke Nederlandse Voetbal Bond (Dutch For Royal Netherlands Football Association) |
| PNH | Paroxysmal Nocturnal Hemoglobinuria - Police Nationale D'Ha?ti (French |
| FINA | F?d?ration Internationale De Natation (French |
| HP | Hewlett-Packard |
| TBT | Tributyltin |
| ACN | Airborne Communications Node - Australian Company Number (number Issued By The Australian Government As Registration Of A Limited Liability Company) |
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