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 3.9.3
❖ We strongly recommend that you upgrade using a desktop and cable -not a WiFi download!
There have been many cases of corrupted binaries caused by WiFi upgrades. We have reported the issue to Apple.
3.9.3 changes:
❖ Fixes an issue for some users when returning from the background
❖ Adds contents of folders to Bookmark sharing lists.
3.9.2 changes:
❖ Share your bookmarks out to Twitter, Facebook, Evernote. etc.
❖ Secondary entries in groups now individually bookmark-able.
❖ Internal bookmarks displayed and editable (phrasal verbs etc.)
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User Review answers:
Mr. Rthereanyavailablenicknames,
You will still keep getting upgrades for the AHD4 app.
If you are having any trouble using it, please email support.
Mr. JhezD,
A simple fix. Try deleting your History list.
We are still waiting for an email from you.
We can not delete user reviews and do not post them for our own apps.
Mr. John Bowden,
There is no way that support would not have responded to you.
Please try again.
Mr. Chester Bonds,
Sounds like a corrupted history file -lots of them with iOS5- or a bad install using WiFi. Please email support to get back up and running.
Mr. Philologist,
We would love to help you, if we knew what your trouble was and you contacted us by email -not the User Review section.
We update at least every month. Please explain your glitches and concerns?
Mr. Reimar Koch (Canada)
Both our Support web FAQ and internal help have recently been updated.
Lost Bookmarks will occur if you delete the app.
There is an update bug in the OS that causing WiFi updates to fail (we have asked Apple to track it down) -it does not delete Bookmarks, though. You must have deleted the app yourself.
User Support is always only an email away.
We are definitely right behind this product.
Customer Reviews
SO Disappointed
Since a couple of upgrades ago this app crashed every time I looked up a word. The only way i could finally get it to work was to delete it from my iPad and reinstall. Of course this lost the many words I had bookmarked. And I did try what they suggested installing via direct connect and not wifi. Because of this I cannot recommend this app.
NICE JOB!!! Still Crashes Immediately
That's it, I give up! Still crashes on startup. I have removed it; lost my bookmarks, and will NEVER use AH dictionary again. So long!!!
More updates, more crashes
Still crashes at startup! Still crashes at startup! Still crashes at startup!
Six weeks and the developer still can't figure out how to make AH4 not immediately crash at startup for 100% of its users. Ridiculous. I am switching to MW's dictionary product and will never purchase an AH mobile app again. Such a shame.

- $24.99
- Category: Reference
- Updated: Mar 04, 2012
- Version: 3.9.3
- Size: 382 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




















