| Acronym | Meaning |
| WRS | Worldwide Reference System |
| CTIS | Central Tire-Inflation System |
| VZ | Verizon Communications (NYSE Code) |
| CU | Cuba (FIPS 10-4 Country Code; ISO 3166 Digram) |
| NS | Nanosecond |
| TMPG | Transparent Multi-Platform Gateway |
| RE | Rhenium |
| ZR | Zirconium |
| DLRP | Data Link Reference Point |
| SNCB | Soci?t? Nationale Des Chemins De Fer Belgique (French For Belgian Railways National Society) |