| Acronym | Meaning |
| AH | Ampere-hour |
| TCL | Tool Command Language |
| TRA | Technology Readiness Assessment |
| IACREOT | International Association Of Clerks |
| KMR | Kwajalein Missile Range |
| RCCO | Royal Canadian College Of Organists |
| MIDI | Musical Instrument Digital Interface |
| WB | Warner Brothers - Welcome Back (Internet Short-hand) |
| PWA | Pirates With Attitude |
| DR | Dead Reckoning -Dominican Republic (FIPS 10-4 Country Code) -Danmarks Radio (Danish Broadcasting Corporation) |