| Acronym | Meaning |
| MOD | Ministry Of Defence (United Kingdom) And Various Other Countries |
| EBCDIC | Extended Binary Coded Decimal Interchange Code (pronounced Eb-see-dik) (cf. BCD) |
| ZC | Zettacoulomb |
| SPA | Spanish Language (ISO 639-2 Code) |
| ACK | Acknowledge (telecommunications; Cf. NAK) |
| ICSI | Intracytoplasmic Sperm Injection |
| PR | Public Relations -Puerto Rico (postal Symbol; ISO 3166 Digram) |
| KAS | Kashmiri Language (ISO 639-2 Code) |
| FOB | Forward Operating Base |
| ACOG | American College Of Obstetricians And Gynecologists |