Online Reference- Acronym & Abbreviations

Acronym Dictionaries:

Acronym Finder Look up more than 100,000.a database of more than 47,000 acronyms and their meanings.

Acronym and Abbreviation Server

Acronyms and Abbreviations Easily searched index with thousands of terms.

Specialized Acronym Dictionaries:

Abbreviations of Chemical Compounds

Babel Glossary of computer abbreviations/acronyms

Postal Acronyms States, street suffixes, zip+4 and more.

U.S. Government: Commonly Used Abbreviations & Acronyms