| Acronym | Meaning |
 | KNA | Saint Kitts And Nevis (ISO 3166 Trigram) |
| RMS | Rate-Monotonic Scheduling - Richard M. Stallman - Root-Mean-Square - Royal Mail Ship (e.g. RMS Titanic) |
| OBS | Observation/Observer - Obsolete - Obstacle -Off Balance Sheet - Optical Burst Switching (IEEE) - Organic Brain Syndrome - Organization(al) Breakdown Structure |
| DCD | [Organ] Donation After Cardiac Death |
| LOA | Limit Of Advance |
| TTY | TeleTYpewriter (Printer) |
| MOD | Ministry Of Defence (United Kingdom) And Various Other Countries |
| BIH | Bosnia And Herzegovina (ISO 3166 Trigram) |
| SH | Serbo-Croatian Language (ISO 639-1 Code) |
| E&OE | Errors And Omissions Excepted |
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