Merriam-Webster's Standard Dictionary (Jewel Case) An authoritative language reference tool of the words most frequently used in English 70,000+ clear, concise definitions, as well as pronunciations, word origins, and usage examples More than 157,000 synonyms, antonyms, idiomatic phrases, and related and contrasted words An authoritative language reference tool of the words most frequently used in English 70,000+ clear, concise definitions, as well as pronunciations, word origins, and usage examples More than 157,000 synonyms, antonyms, idiomatic phrases, and related and contrasted words