| ECOM | United States Army Electronics Command |
| USA | United States of America Vereinigte Staaten von Amerika |
| USM | United States Mail |
| US | United States [of America] |
| POTUS | President Of The United States |
| FGOTUS | First Gentleman of the United States |
| USAF | United States Air Force |
| USS | United States Ship |
| USA | United States Army US-Armee, http://www.army.mil |
| USP | United States Pharmacopeia |
| USFL | United States Football League |
| USAC | United States Answer Center |
| USDA | United States Department of Agriculture |
| USCG | United States Coast Guard |
| USD | United States [of America] Dollar [s] |
| USAC | United States Auto Club |
| USCA | United States Code, Annotated |
| USIA | United States Information Agency |
| USNO | United States Naval Observatory Washington, DC, http://www.usno.navy.mil/ |
| USMP | United States Microgravity Payload |
| USMC | United States Marine Corps |
| AFUS | Air Force of the United States [engl.] Amerikanische Luftwaffe |
| AUS | Army of the United States [engl.] |
| USGS | United States Geological Survey |
| USGA | United States Golf Association |
| USEPA | United States Environmental Protection Agency |
| Contrib. U. S. Natl. Herb. | Contributions from the United States National Herbarium Zeitschrift |
| U.S. Dep. Agric. Bull. | United States Department of Agriculture Bulletin Zeitschrift |
| U.S. Dep. Agric. Misc. Publ. | United States Department of Agriculture Miscellaneous Publication Zeitschrift |
| Proc. Natl. Acad. Sci. U.S.A. | Proceedings of the National Academy of Science of the United States of America Zeitschrift |
| USN | Kriegsmarine der Vereinigten Staaten von Amerika [United States Navy] http://www.navy.mil |
| UNCLE | United Network Command for Law Enforcement |
| FPO | Fleet Post Office |
| AF | Admiral of the Fleet [engl.] Flotten-Admiral |
| FNMOC | Fleet Numerical Meteorology and Oceanography |
| SFLAAE/BS | Star Fleet Ladies Auxiliary and Embroidery / Baking Society |
| TNF | Theater Nuclear Forces Regionale Nuklearstreitkräfte |
| RF | Reaction Forces [NATO] |
| INF | Intermediate Nuclear Forces |
| F.F.A. | Forces Françaises en Allemagne [frz.] Französische Streitkräfte in Deutschland |
| BFN | British Forces Network [engl.] Britischer Militärsender |
| CJTF | Combined Joint Task Forces |
| AFI | American Forces in Italy [engl.] Kfz.-Kennzeichen amerikanischer Armeefahrzeuge in Italien |
| AFN | American Forces Network [engl.] Rundfunk der amerikanischen Streitkräfte |
| CFE | Conventional Forces in Europa [engl.] Nachfolgeverhandlungen zu MBFR |
| BFPO | British Forces Post Offices [engl.] Poststelle des britischen Militärs |
| CFAO | Canadian Forces Administrative Order [engl.] Verwaltungsvorschrift des kanadischen Militärs |
| DOS | Density Of States Physik/ Magnetismus |
| CSA | Confederate States of America |
| FRS | Free Rotor States |