| Acronym | Meaning |
 | PAI | PolyAmide Imide |
| KPW | North Korean Won (ISO 4217 Currency Code) |
| CLEC | Competitive Local Exchange Carrier |
| LULU | Locally Unwanted Land Use (urbanism) |
| TC | Teracoulomb - Turks And Caicos (ISO 3166 Digram) - United Arab Emirates (FIPS 10-4 Country Code; From Trucial Coast States) |
| ISDN | Integrated Services Digital Network |
| FSM | Federated States Of Micronesia (ISO 3166 Trigram) |
| SLA | Service Level Agreement - Symbionese Liberation Army |
| TX | Texas (postal Symbol) - Transmit - Turkmenistan (FIPS 10-4 Country Code) |
| SP | Security Police - Self-Propelled - Shore Patrol -Spain (FIPS 10-4 Country Code) -Start Point - Strong Point |
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