NEW EDITION, 2016 copyright. Revised and updated with 200 newly added words across a variety of fields including technology, social media, science, health and popular culture. Focuses on the needs of students in grades 6-8, ages 11-14, and provides advanced dictionary features to help them read, write and speak more effectively.New words include: blog, cloud computing, copernicium, derecho, fair trade, fracking, geocaching, hashtag, hot spot, mash-up, microblogging, selfie, social media, STEM, tablet and tweet. * Includes nearly 70,000 entries * More than 22,000 usage examples to help clarify and expand understanding* More than 1,000 illustrations* Abundant word history paragraphs and synonym paragraphs * A section on Biographical Names and Geographical Names.* A Handbook of Style gives direction on the proper use of punctuation including how and when to use the apostrophe, colon, comma, dash, Ellipsis, exclamation point, hyphen, semicolon and more. - from Amzon