| Acronym | Meaning |
| MPEV | Multi-Purpose Engineering Vehicle |
| PER | Peru (ISO 3166 Trigram) |
| POW | Prisoner Of War |
| PRBO | Point Reyes Bird Observatory |
| CDM | Clean Development Mechanism (Kyoto Protocol) - Cold Dark Matter (astronomy) |
| CU | Old Church Slavonic Language (ISO 639-1 Code) |
| MOD | Magneto-optical Disc - Masters Of Deception - Minimum Object Distance - Multiple Organ Dysfunction |
| DES | Deep Ecliptic Survey |
| YL | Yottalitre |
| ISCII | Indian Standard Code For Information Interchange |