| Acronym | Meaning |
 | ZN | Zettanewton |
| UPC | Universal Product Code |
| QR | Quake Rally - Qualitative Reasoning - Queensland Rail - Queen's Rangers - Quick Release - Quiet Riot -Qatar Airways (IATA Airline Designator) |
| LPI | Low Probability Of Intercept |
| TOS | Tape Operating System - Terms Of Service - Tramiel Operating System |
| SBCS | Single-Byte Character Set |
| ORI | Oriya Language (ISO 639-2 Code) |
| SSW | Swati Language (ISO 639-2 Code) |
| TIM | Technical Information Memorandum - Technical Interchange Meeting - Toxic Industrial Material - Telecom Italia Mobile |
| TEMO | Training |
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