| Acronym | Meaning |
 | SBB | German For The Swiss Federal Railways |
| IEEE | Institute Of Electrical And Electronics Engineers (I Triple-E) |
| PADI | Professional Association Of Diving Instructors |
| PNF | Pilot Not Flying (aviation) |
| UJTL | Universal Joint Task List |
| Z | Zepto |
| NRA | National Rifle Association |
| YI | Yobi |
| SAIC | Science Applications International Corporation |
| UCAV | Unmanned Combat Air Vehicle |
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