The world’s leading online dictionary: English definitions, synonyms, word origins, example sentences, word games, and more. A trusted authority for 25+ years!

The meaning of DICTIONARY is a reference source in print or electronic form containing words usually alphabetically arranged along with information about their forms, pronunciations, …

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 …

Nov 8, 2025 · Collins online dictionary and reference resources draw on the wealth of reliable and authoritative information about language, thanks to the extensive use of our corpora - vast …

1 day ago · The World's most comprehensive free online dictionary, thesaurus, and encyclopedia with synonyms, definitions, idioms, abbreviations, and medical, financial, legal specialized …

6 days ago · Cambridge Dictionary - English dictionary, English-Spanish translation and British & American English audio pronunciation from Cambridge University Press

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 …

3 days ago · Clear and simple definitions in American English from Britannica's language experts. More usage examples than any other dictionary.

Find definitions for over 300,000 words from the most authoritative English dictionary. Continuously updated with new words and meanings.

a book or digital resource (such as Dictionary.com) containing a selection of words and information about their meanings, pronunciations, etymologies, inflected forms, derived forms, …