| Acronym | Meaning |
 | NRAO | National Radio Astronomy Observatory |
| UPF | Universitat Pompeu Fabra (Catalan |
| SJ | Svalbard And Jan Mayen (ISO 3166 Digram) -Societas Iesu (Latin: The Society Of Jesus |
| IVM | In Vitro [Oocyte] Maturation |
| IRN | Iran (ISO 3166 Trigram) |
| LLLTV | Low-Light Level Television |
| MIKE | Monitoring Of Illegal Killing Of Elephants |
| COMSEC | Communications Security (military) |
| CYP | Cyprus (ISO 3166 Trigram) - Cyprus Pound (ISO 4217 Currency Code) |
| CSA | Canadian Space Agency - Canadian Standards Association - Child Support Agency - Command Staff Advisor - Community-supported Agriculture - Confederate States Of America - Corps Storage Area -Czech Airlines |
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