DESC: Americas #1 paperback is now on CD-ROM, featuring more than 70,000 definitions, 500,000 links to related words, and pronunciation symbols that link to audio samples. Plus, this perfect started ser includes the Merriam-Webster Thesaurus, which lists nearly 100,000 synonyms, antonyms, and idiomatic phrases, and the American Concise Encyclopedia, which offers instant access to more than 15,000 entries.