American Heritage® Dictionary — 4th Edition
By Enfour, Inc.
Open iTunes to buy and download apps.
Description
❖ New users, please buy the AHD 5th Edition instead ❖
❖ The Fifth Edition is available via an InApp purchase in the coupon version! ❖
❖ If you are in a hurry to get your hands on AHD5, that is the fastest way. ❖
❖ Search on "AHD5". ❖
The entire 2,074 page, 7.5 pound dictionary with its nearly 300,000 terms –plus 64 thousand recorded sound files all available instantly at your fingertips.
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"In battle of the Big Three dictionaries, American Heritage® stands out on iPhone" (4 mice)
— MacWorld
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This iPhone/iPod touch version has the entire 2,074 page, 7.5 pound dictionary with its nearly 300,000 terms –plus 64 thousand recorded sound files by native speakers– all available instantly at your fingertips.
More than 33,000 written examples, totaling 4,222,000 words, makes this largest mobile dictionary on ANY platform
The indexes alone are larger than most brand-name dictionaries. Even without the sound files, AHD4 would still be over 100MB and the largest dictionary in the AppStore.
Main Features:
❖ entire text of this best selling book
❖ complete front matter and appendicies
❖ three-way cross-referencing search
❖ real-time progressive look-up
❖ wildcard pattern searches (with * ?)
❖ spelling suggestion dictionary included
❖ internal hyperlinking & supports copy/paste
❖ pop-up pronunciation symbols chart
❖ IPA pronunciation symbol conversion
❖ etymology (word history) with root links
❖ professionally recorded sound files
❖ zoomable graphics
❖ unique two-way external application interaction
— first iPhone dictionary with external linking and now most advanced!
❖ bookmarks with editable notations
❖ automatic search history
❖ complete offline use - no Internet connection
The renowned American Heritage® Usage Panel, a group of more than 200 distinguished writers, scholars, and scientists, offers advice on problems of grammar and style; engaging notes explain word histories and clarify differences among synonyms; thousands of quotations and example sentences show words in context; and elegant definitions are enhanced by numerous full-color photographs, drawings, and maps, making this one of the most complete reference tool available on any mobile platform.
Reviews for the application:
"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)
— MacWorld
Editor's Choice. ranking = "Great"
— MacLife
★★★★★
Over 800 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
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The American Heritage® Dictionary of the English Language, Fourth Edition published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
http://www.hmco.com
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Powered by Enfour's "UniDict® Engine 3"
—lookup definitions from "SpellChecker"
—thesaurus links work with these products:
"Roget's II: New Thesaurus"
"Companion Thesaurus"
"Companion Synonyms"
What's New in Version 3.9.1
❖ prevents "false negatives" for links.
❖ better preparation for AHD5 cross-grade discount verification.
❖ ASCII locking for non-Latin default keyboards.
❖ added swipe to move between entries.
❖ better display for grouped bookmarks.
★ We strongly recommend that you upgrade using a desktop and cable -not a WiFi download.
★ The waiting is over! ★
❖ This version of AHD4 enables discounted purchases of AHD5:
-upgrade and run AHD4.
-make sure you have an Internet connection.
-in "About", click on the AHD5 icon, download & run the free engine.
(If you install AHD5 via a desktop sync, you still need to run AHD4 first!)
-make sure the InApp purchase screen shows "discounted".
-click "Purchase".
※ on all your devices, make sure AHD4 is installed & click "Restore".
■ AHD5 will be half price for AHD4 app owners for limited time only.
※ If you have bookmarks in AHD4 that you would like to move to AHD5, we suggest you do NOT delete AHD4 until iCloud support is added (coming soon).
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User Review answers:
For all users claiming to have trouble contacting Enfour support, please make sure you are emailing the correct address:
enfour (at) enfour.co.jp
We answer all emails in a timely fashion. All upgrade problem have been fixed for everyone except one customer.
Writing support questions or troubleshooting issues to the User Review doesn't solve your issues. Email does.
Customer Reviews
Cannot use version 3.9.1; it immediately crashes
I've had the 4th ed. of the American Heritage Dictionary for a long time. Great dictionary. However, after upgrading to version 3.9.1 on my iPhone 4 (with iOS 5.0.1), I was unable to use the app. After entering a search term and clicking either Search or clicking the term in the list below the search field, the app crashes (i.e. disappears). This happens EVERY time.
Useless: Crashes Immediately
I had FINALLY gotten the discounted upgrade to AHD 5 to work, but went ahead and updated both 4 and 5. Guess what! AHD4 now immediately crashes - I have re-booted my iPhone to no avail. Now, you might say what's the big deal? The big deal is i have a large amount of bookmarks that I can no longer access and I was hoping to be able to sync via iCloud. Come on guys, don't you test this stuff?
Upgrade to v5 now works!
Update to version 5 now works.
Any way of importing all of my bookmarked words from version 4?

- $24.99
- Category: Reference
- Updated: Feb 01, 2012
- Version: 3.9.1
- Size: 381 MB
- Languages: English, Arabic, Bosnian, Catalan, Chinese, Danish, Dutch, Finnish, French, German, Hebrew, Hindi, Hungarian, Indonesian, Irish, Italian, Japanese, Korean, Lithuanian, Malay, Polish, Portuguese, Russian, Slovenian, Spanish, Swedish, Tagalog, Thai, Turkish
- Seller: Enfour, Inc.
- © Enfour, Inc 2008-2012
Requirements: Compatible with iPhone, iPod touch, and iPad.Requires iOS 3.1.3 or later




















