| Acronym | Meaning |
| CW | Continuous Wave (laser) -Cook Islands (FIPS 10-4 Territory Code) |
| CXR | Christmas Island (ISO 3166 Trigram) |
| RDECOM | (U.S.) Research |
| USPTO | United States Patent And Trademark Office |
| TAH | Tahitian Language (ISO 639-2 Code) |
| PME | Professional Military Education |
| KNVB | Koninklijke Nederlandse Voetbal Bond (Dutch For Royal Netherlands Football Association) |
| TDL | Tactical Data Link |
| PSA | Paralysis Society Of America - Pharmaceutical Society Of Australia - Pressure-Sensitive Adhesive - Production Services Association - Prostate Specific Antigen - Public Service Announcement - Public Service Association |
| MHWS | Mean High Water Springs (nautical Charts) |