| AEIF | European Association for Railway Interoperability (skr.), Európska asociácia pre interoperabilitu železníc (angl.skr.) |
|---|---|
| DEBORA | opera J. B. Foerstra |
| OECD | Organization for Economic Cooperation and Development, medzinárodná organizácia |
| RMOS | real memory operating (infor. skr.) |
| SOS | Special Operations Strikeforce, tím v komiksovej sérii The Savage Dragon |