| Acronym | Meaning |
 | GALCIT | Guggenheim Aeronautical Laboratory |
| ZUL | Zulu Language (ISO 639-2 Code) |
| WH | Wehrmacht Heer (German WW2 Army Vehicle Licence Plate Code) |
| FTP | File Transfer Protocol |
| LIFO | Last In |
| DS | Dear Son (increasingly Prevalent On Social Mailing Lists |
| HRT | Hormone Replacement Therapy |
| PW | Picowatt |
| XVII | Seventeen (in Roman Numerals) |
| ZW | Zettawatt - Zimbabwe (ISO 3166 Digram) |
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