Acronym definition: a word formed from the initial letters or groups of letters of words in a set phrase or series of words and pronounced as a separate word, as Wac from Women's Army Corps, OPEC from Organization of Petroleum Exporting Countries, or loran from long-range navigation.. Find out what any acronym , abbreviation , or initialism stands for With more than 1,000,000 human-edited definitions, Acronym Finder is the world's largest and most comprehensive dictionary of acronyms , abbreviations , and initialisms. Combined with the Acronym Attic, Acronym Finder contains more than 5 million acronyms and abbreviations . What is an Acronym ? A Complete Guide Charlotte Wilson 26 August 2025 An Acronym is a word formed by taking the first letters of a phrase and combining them to create a new, pronounceable word. For example, "NASA" stands for National Aeronautics and Space Administration. They make long names shorter and easier to remember, and are commonly used in everyday language, business, science, and technology. Learn what an acronym is and how to use it in writing and speaking. Find out the difference between acronyms, initialisms, and abbreviations, and see some popular examples of each.
