Revised and Updated Edition! Two essential language references integrated into one handy volume. More than 60,000 dictionary entries with hundreds of new words and senses added across a variety of fields. More than 13,500 thesaurus entries including extensive synonym and antonym lists. Dictionary and thesaurus entries are combined alphabetically. Features clear and concise word guidance including abundant usage examples to clarify meanings. Newly added words include: airplane mode, bucket list, dystopia, parkour, and truther. Based on the best-selling Merriam-Webster's Collegiate(R) Dictionary.