| Acronym | Meaning |
 | UR | Urdu Language (ISO 639-1 Code) |
| PS | Petasecond |
| MLSR | Missing |
| GPO | General Post Office |
| C3I OR C?I | Command |
| OOP | Object-Oriented Programming - Out Of Print |
| AGL | Above Ground Level |
| SECAM | S?quentiel Couleur ? M?moire (French For Colour Sequential With Memory; TV Standard |
| IFRB | International Frequency Registration Board |
| STANAG | (NATO) Standardisation Agreement |
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