| Acronym | Meaning |
 | POTS | Plain Old Telephone Service (cf. PANS) - Postural Orthostatic Tachycardia Syndrome |
 | NRC | National Research Council (U.S.) - Nuclear Regulatory Commission (U.S.) |
 | QA | Qatar (FIPS 10-4 Country Code; ISO 3166 Digram) |
 | LH | Lithuania (FIPS 10-4 Country Code) -Luteinising Hormone |
 | CLI | Command Line Interface/Interpreter |
 | SONAR | SOund Navigation And Ranging |
 | KR | Kanuri Language (ISO 639-1 Code) |
 | SACEUR | Supreme Allied Commander EURope |
 | PLN | Polish Zloty (ISO 4217 Currency Code) |
 | FSSP | Families Of Structurally Similar Proteins |