| Acronym | Meaning |
 | SSP | Submarine Transport (retired US Navy Hull Classification) |
| DRET | Defence Research Establishment Toronto (obsolete 2002) |
| AWP | Awaiting Parts (SM&R Code) |
| PL | Polish Language (ISO 639-1 Code) |
| CHIPS | Cosmic Hot Interstellar Plasma Spectrometer |
| MSH | Medium Support Helicopter - Mount Saint Helens |
| SI | Silicon |
| LINEAR | Lincoln Near-Earth Asteroid Research |
| HRD | Human Resource Development |
| MHW | Mean High Water (nautical Charts) |
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