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Whether you’re a student, professional, or simply curious, Abbreviation Library gives you a single place to search, learn, and understand abbreviations across every industry. Our growing database and course library are built to save you time and build real understanding — not just quick lookups.
Thousands of verified abbreviations, acronyms, and initialisms, organized by category and updated regularly.
Short, practical courses that go beyond definitions to help you actually use abbreviations correctly in context.
Search our library or enroll in a course — either way, you’ll find abbreviations explained clearly, with real-world context and examples.
Abbreviation Library is built to remove confusion. Every entry is checked for accuracy, written in plain language, and organized so you can find what you need without wading through unreliable sources. Our courses take this further, helping learners retain and apply abbreviations confidently in real situations.
I stumbled onto Abbreviation Library while trying to figure out what a client meant by 'QBR' in an email, and I ended up staying for almost an hour just browsing the business category. What I like most is that the definitions actually explain the context, not just the expansion — so I'm not left guessing how a term is really used. I've since gone through two of the short courses and started recommending the site to my whole team.
Writing my thesis meant constantly running into academic and institutional abbreviations I'd never seen before, and most of them weren't even in my usual dictionary. Abbreviation Library became my go-to tab for the entire semester. I especially appreciated that entries link to related terms, so one search often answered three questions instead of just one.
Reach out to suggest a new term, ask about our courses, or share feedback — we’re always expanding the library.
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