- DOD Dictionary - US Defence Department master database.
- Military Acronyms - An alphabetical database.
- Military Acronyms, Initialisms and Abbreviations - Indexed online database of military shorthand terms.
- Space and Electronic Warfare Lexicon - Acronyms and terms relating to space, computers, and related technologies. Most terms have source citations.
- Tech-Writer.net - Aerial Reconnaissance and Imagery Analysis Acronyms - Mostly military terms.
- United States Navy Patrol Squadrons - Glossary of acronyms and terminology.
- US Military and State Abbreviations and Acronyms - Contains terms and aircraft designations for all military branches.
- USAAF Abbreviations - Glossary of terms used in the United States Army Airforces.
