Useful Websites: Dictionaries & Encyclopedias

Look up the meaning of an acronym.

Explore the fact-checked online encyclopedia from Encyclopaedia Britannica with hundreds of thousands of objective articles, biographies, videos, and more.

Comprehensive reference source for all forms of life on Earth.

The Merriam-Webster Language Center has both a dictionary and a thesaurus, as well as features such as the Word of the Day and other words.

The online version of the famous thesaurus has an index of terms, an index of the six main classes of words, and links to online resources.

World History Encyclopedia is one of the world’s most-read history publications with over 25 million annual readers. The encyclopedia follows academic standards but is written with the general public in mind.