| Acronym | Meaning |
 | TLS | Timor-Leste (ISO 3166 Trigram) -Times Literary Supplement |
| RCS | Radar Cross-Section - Revision Control System - Reaction Control System |
| CN | Canadian National (railway) -China (ISO 3166 Digram) - Comoros (FIPS 10-4 Country Code) |
| VISCII | VIetnamese Standard Code For Information Interchange |
| TOT | Time On Target |
| BMX | Bicycle/Bike Moto(r) Cross |
| CYP | Cyprus (ISO 3166 Trigram) - Cyprus Pound (ISO 4217 Currency Code) |
| SRD | Sardinian Language (ISO 639-2 Code) |
| CRIPL | Consolidated Remain-In-Place List |
| NCAR | U.S. National Center For Atmospheric Research |
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