| ECOM | United States Army Electronics Command |
| USA | United States Army US-Armee, http://www.army.mil |
| AUS | Army of the United States [engl.] |
| A.E.C. | Army Electronics Command [engl.] Sektion der US Armee |
| USAF | United States Air Force |
| USM | United States Mail |
| USA | United States of America Vereinigte Staaten von Amerika |
| US | United States [of America] |
| USS | United States Ship |
| POTUS | President Of The United States |
| FGOTUS | First Gentleman of the United States |
| USP | United States Pharmacopeia |
| USD | United States [of America] Dollar [s] |
| USDA | United States Department of Agriculture |
| USFL | United States Football League |
| USGA | United States Golf Association |
| USGS | United States Geological Survey |
| USIA | United States Information Agency |
| USCG | United States Coast Guard |
| USCA | United States Code, Annotated |
| USMP | United States Microgravity Payload |
| USAC | United States Auto Club |
| USAC | United States Answer Center |
| AFUS | Air Force of the United States [engl.] Amerikanische Luftwaffe |
| USMC | United States Marine Corps |
| USNO | United States Naval Observatory Washington, DC, http://www.usno.navy.mil/ |
| USEPA | United States Environmental Protection Agency |
| U.S. Dep. Agric. Bull. | United States Department of Agriculture Bulletin Zeitschrift |
| Contrib. U. S. Natl. Herb. | Contributions from the United States National Herbarium 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 |
| KAO | Kuiper Airborne Observatory |
| AEW | Airborne Early Warning [engl.] Frühwarnsystem für Flugzeuge |
| AWACS | Airborne Warning and Control System radarbasiertes elektronisches System |
| APC | Airborne Public Correspondence [engl.] |
| APE | Airborne Polar Experiment [engl.] Polarforschung in Flugkörpern |
| ALEA | Airborne Law Enforcement Association [engl.] Amerikanischer Verband in Tulsa, Ok |
| GB | Airborne Express [IATA-Airline-Code/ USA] |
| AFFE | Airborne Fire Fighting Equipment [engl.] |
| ADAS | Airborne Damage Assessment System [engl.] System zur Schadensbewertung während des Fluges |
| RF | Reaction Forces [NATO] |
| F.F.A. | Forces Françaises en Allemagne [frz.] Französische Streitkräfte in Deutschland |
| INF | Intermediate Nuclear Forces |
| TNF | Theater Nuclear Forces Regionale Nuklearstreitkräfte |
| AFN | American Forces Network [engl.] Rundfunk der amerikanischen Streitkräfte |
| BFN | British Forces Network [engl.] Britischer Militärsender |
| AFI | American Forces in Italy [engl.] Kfz.-Kennzeichen amerikanischer Armeefahrzeuge in Italien |
| CJTF | Combined Joint Task Forces |