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Search the Merriam-Webster Thesaurus for millions of synonyms, similar words, and antonyms. Our unique ranking system helps you find the right word fast and expand your English vocabulary.
In the early 19th century, archaeologists borrowed the Latin word thesaurus to denote an ancient treasury, such as that in a temple. Soon after, the word was metaphorically applied to a book containing a treasury of words or information about a particular field.
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Merriam-Webster, an Encyclopaedia Britannica company, has been America's leading provider of language information for more than 180 years. Each month, our award-winning websites, apps, and social media channels offer guidance to tens of millions of visitors.
Merriam-Webster, Incorporated is an American company that publishes reference books and is mostly known for its dictionaries. It is the oldest dictionary publisher in the United States. [1] In 1831, George and Charles Merriam founded the company as G & C Merriam Co. in Springfield, Massachusetts.
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After about a decade of preparation, G. & C. Merriam issued the entirely new Webster's Third New International Dictionary of the English Language, Unabridged (commonly known as Webster's Third, or W3) in September 1961.
