About Dictionary.com

Dictionary.com is a multi-source dictionary search service produced by Lexico Publishing Group, LLC, a leading provider of language reference products and services on the Internet.

To use the dictionary, simply type a word in the blue search box that appears at the top of every page and then click the 'Search' button. This will perform a search for the word in the several dictionaries hosted on our site (see below). If you don't know how to spell the word, just guess. You will get a list of suggestions if you are wrong.

Note that Dictionary.com does not produce all the dictionaries that appear on our Web site; we simply make them available. In that respect we are more like a bookstore or library than a publisher. Thus any comments regarding the content of the definitions that appear on our site should properly be directed to the publisher or copyright holder. The source of each entry is given immediately after the entry in question; follow the source link for information about the dictionary, including publisher contact information.

The resources that appear on Dictionary.com are:

Dictionary.com Unabridged (v 1.1), Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.
Webster's New Millennium™ Dictionary of English, Preview Edition (v 0.9.7) Copyright © 2007 Lexico Publishing Group, LLC
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2000 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Company.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
American Heritage® Science Dictionary, Copyright © 2002 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved
American Heritage® New Dictionary of Cultural Literacy, Third Edition. Copyright © 2005 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
American Heritage® Abbreviations Dictionary, Third Edition. Copyright © 2005 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
Online Etymology Dictionary, © 2001 Douglas Harper
Kernerman English Multilingual Dictionary (Beta Version), © 2000-2006 K Dictionaries Ltd.
WordNet ® 3.0, © 2006 Princeton University
Investopedia.com. Copyright © 1999-2005 - All rights reserved. Owned and Operated by Investopedia Inc.
Wall Street Words: An A to Z Guide to Investment Terms for Today's Investor by David L. Scott. Copyright © 2003 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Merriam-Webster's Dictionary of Law, © 1996 Merriam-Webster, Inc.
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
The Free On-line Dictionary of Computing, © 1993-2007 Denis Howe
Jargon File 4.2.0
Acronym Finder, © 1988-2007 Mountain Data Systems
U.S. Gazetteer, U.S. Census Bureau
On-line Medical Dictionary, © 1997-98 Academic Medical Publishing & CancerWEB

Other features on Dictionary.com are: