Dictionary.com is an online dictionary whose domain was first registered on May 14, 1995.[1] The company was founded by Brian Kariger and Daniel Fierro as part of Lexico Publishing, which also started Thesaurus.com and Reference.com.[2]

Dictionary.com logo.svg
Type of site
Available inEnglish
Created byBrian Kariger
Daniel Fierro
LaunchedMay 14, 1995; 24 years ago (1995-05-14)

In 2008, Dictionary.com was acquired by Ask.com, an IAC company.[2]



The content for Dictionary.com is based on the Random House Unabridged Dictionary, with other content from the Collins English Dictionary, American Heritage Dictionary and others.[3]

Features and appsEdit

On Monday, May 3, 1999, Dictionary.com began its Word of the Day feature.[4]

In April 2009, Dictionary.com offered their first dictionary app in the iOS App Store. Since then, they have released the Android version, as well as a standalone thesaurus app called Thesaurus Rex, along with education apps, Dictionary.com Flashcards, Word Dynamo, and Learning to Read with Zoo Animals.


  1. ^ Dictionary.com WHOIS, DNS, & Domain Info - DomainTools page at DomainTools.com. Retrieved June 16, 2016.
  2. ^ a b "Lexico, Dictionary.com Being Acquired By Ask.com; Price In $100 Million Range". Gigacom. Retrieved 2014-01-24.
  3. ^ "Dictionary.com - About Us". Retrieved October 8, 2015.
  4. ^ "emolument - Word of The Day".

External linksEdit