| Acronym | Meaning |
| SWAP | Surface Waters Acidification Programme |
| AP | Advanced Placement - Air Publication -Armed Forces Pacific (postal Symbol) -Associated Press - Auto Pilot |
| DIY | Do It Yourself |
| BI | Bismuth |
| GPA | Grade Point Average |
| KW | Kilowatt |
| TIM | Technical Information Memorandum - Technical Interchange Meeting - Toxic Industrial Material - Telecom Italia Mobile |
| NETL | (US) National Energy Technology Laboratory |
| CEPT | Conf?rence Europ?enne Des Administrations Des Postes Et Des T?l?communications (French |
| WI | Western Sahara (FIPS 10-4 Country Code) - Wisconsin (postal Symbol) |