| Acronym | Meaning |
 | YM | Yoctometre |
| CSK | Czechoslovakia (ISO 3166 Trigram; Obsolete Since 1993) |
| TWAT | The War Against Terror |
| OPV | Offshore Patrol Vessel |
| NREL | U.S. National Renewable Energy Laboratory |
| RORO OR RO | Ro -Roll-On/Roll-Off (ferry) |
| CHF | Swiss Franc (ISO 4217 Currency Code) |
| FWS | U.S. Fish And Wildlife Service |
| CTO | Chief Technical Officer - Chief Technology Officer |
| SOCCSKSARGEN | South Cotabato |
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