The entire 2,074 page, 7.5 pound dictionary with its nearly 300,000 terms –plus 64 thousand recorded sound files & "Roget's II: The New Thesaurus".________________________________________• The American Heritage® Dictionary of the English Language, Fourth Edition (美國傳統英語字典 第四版)• Roget's II: The New Thesaurus (分类词词典)________________________________________"In battle of the Big Three dictionaries, American Heritage stands out on iPhone" (4 mice)— MacWorld________________________________________Includes all the functionality of these two titles in one application.This iPhone/iPod touch version has the entire 2,074 page, 7.5 pound dictionary with its nearly 300,000 terms more than 33,000 written examples –plus 64 thousand professionally recorded sound files. Not to mention the complete front matter and appendices, zoomable graphics -all available instantly at your fingertips.This makes for the largest English dictionary & thesaurus set on ANY mobile platform.Main Features:● entire text of these best selling tomes● complete front matter and appendices● unique three-way cross-referencing search● real-time progressive look-up● wildcard searches for crosswords or spelling● hyperlinking to appendices and between books● pop-up pronunciation symbols chart● IPA symbol conversion● etymology (word history) with root links● professionally recorded sound files● zoomable graphics● support for search from other applications● spelling suggestion dictionary● Bookmarks with folders & editable notations● automatic search History● OS-independent app localization● complete offline use — no Internet connection________________________________________"As apps go, only Enfour’s American Heritage Dictionary stands out for its graphic appeal and functionality. Although I was pleased to have so much lexical firepower in such a compact form, I was annoyed at how poorly the other dictionaries present on the platform." (4 mice)— MacWorldEditor's Choice.ranking = "Great"— MacLifeOver 4500 five-star reviews on the AppStore worldwide.Reviews of the print version:"The Best Dictionary...Designed to appeal to the eye as well as the mind, it is notable for its imaginative illustrations....This is a great family dictionary, and ideal for schoolrooms."— The Courier Journal"This dictionary, now in its fourth edition, makes it fun to look up definitions of words....This up-to-date and eminently useful dictionary features fabulous full-color design that quickly and effectively guides users to the information they seek."— Library Journal________________________________________"The American Heritage® Dictionary of the English Language, Fourth Edition" and "Roget’s II: The New Thesaurus, Third Edition" are published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.Houghton Mifflin Harcourt Publishing Companyhttp://www.hmco.comPowered by Enfour's -"UniDict® Engine 7"