Merriam-Webster: America's Most Trusted Dictionary
Find definitions for over 300,000 words from the most authoritative English dictionary. Continuously updated with new words and meanings.
Cambridge Dictionary | English Dictionary, Translations ...
The most popular dictionary and thesaurus for learners of English. Meanings and definitions of words with pronunciations and translations.
Oxford English Dictionary
The historical English dictionary An unsurpassed guide for researchers in any discipline to the meaning, history, and usage of over 500,000 words and phrases across the English-speaking world.
Collins Online Dictionary | Definitions, Thesaurus and ...
May 29, 2026 · Pioneers in Language Reference for 200 years. Popular and trusted online dictionary with over 1 million words. Find definitions, meanings, synonyms, pronunciations, translations, origin …
Dictionary, Encyclopedia and Thesaurus - The Free Dictionary
1 day ago · The World's most comprehensive free online dictionary, thesaurus, and encyclopedia with synonyms, definitions, idioms, abbreviations, and medical, financial, legal specialized dictionaries
Oxford Learner's Dictionaries | Find definitions ...
The largest and most trusted free online dictionary for learners of British and American English with definitions, pictures, example sentences, synonyms, antonyms, word origins, audio pronunciation, …
DICTIONARY Definition & Meaning | Dictionary.com
A dictionary is a collection of words and their definitions (and sometimes other information). Such collections are usually printed as books, but some are now designed for use on computers.