| Acronym | Meaning |
 | ROC | Receiver Operating Characteristic (statistics) - Regional Operations Centre - Republic Of China - Roc-A-Fella Records |
| MLL | Major League Lacrosse |
| CIS | Canadian Interuniversity Sport - Commonwealth Of Independent States - Command And Information System - Communication And Information System |
| TMAP | Texas Medication Algorithm Project |
| APA | (i) American Psychiatric Association |
| WW | See Entry |
| WSW | West South-West |
| NDS | Nintendo DS |
| MANPADS | MAN-Portable Air Defence System |
| INTERFET | International Force For East Timor |
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