Acronym Dictionaries

• Computer and Internet
• Health and Medicine
• Military

• Abbreviations and Acronyms in the US Government  - List of the different agencies and departments in the US government with links to their respective official websites.
• Abbreviations.com  - Searchable directory of acronyms and abbreviations used in a variety of subjects.
• Acronym Search  - Source for information on commonly and rarely used term or title contractions. Accommodates online submissions for new acronyms as well.
• Acronyma  - Acronym information resource presented in a variety of languages.
• Acronymfinder  - Get to know the meanings or the terms represented by various acronyms and mnemonics in this comprehensive database. Contains human edited entries.
• All-Acronyms.com  - Online reference for acronyms, alphabetisms, abbreviations, and initialisms.
• Apronyms  - "A Pertinent Re-Interpretation of Normality Yielding More Sense." Contains list of mnemonics and education-related word contractions.
• Counseling Seattle Initials and Acronyms  - Dictionary of initials, acronyms, and abbreviations used by counselors and social workers.
• Dictionary of Quaternary Acronyms and Abbreviations  - Lists the meanings of the acronyms and abbreviations used in Quaternary studies. Also presents information on acronyms for societies, government agencies, and laboratory lingo.
• The Free Dictionary Acronyms and Abbreviations  - Collection of acronyms and abbreviations used in various fields including computers, telecommunications, technology, military, and governments.
• Frequently Seen Space or Astronomy Acronyms  - Plain text presentation listing the different acronym and jargon used in space and astronomy studies.
• Genealogical Abbreviations and Acronyms  - Alphabetical listing of the acronyms used in genealogical studies. Comes in plain text.
• The Great Four Letter Abbreviation Hunt and Acronym  - Presents the meanings of four letter word combinations used as acronyms. With links to the three letter version and forums.
• The Internet Acronym Server  - Growing collection of acronyms and their meanings. Accepts user-submitted acronyms and provides API for references.
• Learning, Performance, and Training Acronyms  - List of training and manpower learning or development jargon and abbreviations.
• Teen Chat Decoder  - What do those acronyms mean that your teens are using in their daily chat? Enter the acronym into the form, and get several examples to choose from.
• USPS Abbreviations Glossary  - Familiarize the jargons and acronyms used by the United States Postal Service.
• WebAcronyms.com  - Guide to acronyms, abbreviations, and slang used on the Internet and in mobile phone communication.
• Wiley InterScience Acronym Finder  - Search tool for information about the different abbreviations and contracted terminologies used in different scientific fields.