| Acronym | Meaning |
| QK | Air Canada Jazz (IATA Airline Designator) |
| CPPCC | Chinese People's Political Consultative Conference |
| XC | Ninety (in Roman Numerals) |
| AT | Astatine |
| WSDL | Web Services Description Language |
| CVR | Cockpit Voice Recorder - Combat Vehicle Reconnaissance |
| YC | Yoctocoulomb |
| NH | New Hampshire (postal Symbol) - New Hebrides (ISO 3166 Digram; Obsolete 1980) - Vanuatu (FIPS 10-4 Country Code; From New Hebrides) |
| ROA | Rate Of Ascent |
| NIAAA | U.S. National Institute On Alcohol Abuse And Alcoholism |