Merriam-Webster's Collegiate Dictionary, 11th Edition (Kindle Version) by Merriam-Webster

You can set this dictionary as your default Kindle dictionary and look up words while reading. The default setting is The New Oxford American Dictionary included on your Kindle, but you have the option to change your default setting to this compatible dictionary after purchase. America’s Best-Selling Dictionary defines the current, active vocabulary of American English! Features more than 225,000 definitions and over 42,000 usage examples to clarify meaning. Newly added words and meanings across a variety of fields including technology, entertainment, health, science, and society. New words include: hashtag, steampunk, digital divide, fracking, and fist pump. Special sections include A Handbook of Style, Foreign Words & Phrases, Biographical Names, and Geographical Names. Over 60 million copies of Merriam-Webster’s Collegiate Dictionary have been sold since its initial publication in 1898.