| Acronym | Meaning |
| HP | IL -Hewlett-Packard Interface Loop (serial Bus Used With Some HP Calculators And Computers |
| WL | Wehrmacht Luftwaffe (German WW2 Air Force Vehicle Licence Plate Code) |
| PAI | PolyAmide Imide |
| PA | Panama (ISO 3166 Digram) - Paraguay (FIPS 10-4 Country Code) -Partial Agonist -Pennsylvania (postal Symbol) - Petampere -PolyAmide (Nylon) - Prince Albert Piercing - Public Address (vocal Amplification System) - Public Affairs |
| TIGER | Topologically Integrated Geographic Encoding And Referencing System |
| YID | Yiddish Language (ISO 639-2 Code) |
| NO | FEAR -Notification And Federal Employee Antidiscrimination Retaliation Act (2002) |
| SACLANT | Supreme Allied Commander AtLANTic |
| FILO | First In |
| PDA | Personal Digital Assistant - Predicted Drift Angle - Public Display Of Affection - Push-Down Automaton |