Webster Dictionary In 1806,Noah Webster published his first dictionary.His great dictionary,An The Merriam- Webster American Dictionary of the English Dictionary Language,appeared in two volumes in 1828. This work included 12,000 words and 40,000 definitions that had never before appeared in a dictionary. Webster Dictionary In 1806, Noah Webster published his first dictionary. His great dictionary, An American Dictionary of the English Language, appeared in two volumes in 1828. This work included 12,000 words and 40,000 definitions that had never before appeared in a dictionary