American Heritage Dict.

American Heritage Dict.

By MobiSystems, Inc.

  • Category: Reference
  • Release Date: 2016-07-01
  • Current Version: 10.0.10
  • Adult Rating: 4+
  • File Size: 65.25 MB
  • Developer: MobiSystems, Inc.
  • Compatibility: Requires iOS 9.0 or later.
Score: 4.4311
From 791 Ratings


The American Heritage® Dictionary of the English Language is the premier resource for anyone who wants to know precisely what words mean, where they come from, and how to use them effectively. It is renowned for presenting accurate and comprehensive definitions, etymologies based on the latest research and authoritative usage. Regarded as one of the flagship products in Houghton Mifflin Harcourt catalog, the app features advanced search and learning tools designed by a vastly experienced developer. The very latest database contains 10,000 new words and phrases, over 4,000 dazzling new full-color images, and authoritative, up-to-date guidance on usage, covering: - Revised definitions in rapidly changing fields such as astronomy and biology; - Updated geographical entries and maps; - Enhanced notes on word history, synonymy, and language variation; - New quotations from classic and contemporary writers; - Reviewed etymologies that explain word origins and development to reflect the very latest scholarship; - Many words are traced back to their roots in prehistory through two unique appendixes showing word roots in ancient Indo-European and Semitic languages. This app is tailored to professionals, students, and academics, as well as anyone who needs a comprehensive and authoritative dictionary of current English at work or at home. LATEST APP UPDАТES:  • Learn in style with any of the four colorful new themes – The colorful layout will turn your learning experience into an enjoyable routine. Customize your dictionary and benefit from the cheerful mood your favorite color brings you.  • Dive right into the intricacies of the language - With new and convenient Home page, sleeker and more intuitive visual layout, as well as innovations in the speed of searches, you can get to the desired entry faster than ever.  • Translate and learn as you speak by using Talk & Translate – Use the speech recognition & text-to-speech app by downloading it for Free from the App Store. The great synergy between the two apps will be there to help you optimize your studies. SEARCH TOOLS - quickly find words with the clear, functional, and easy-to-use interface. Designed to provide the most comprehensive search experience, the dictionary combines several search tools to match or predict what are you looking for, including:  • Search autocomplete helps you find words quickly by displaying predictions as you type.  • Keyword lookup allows you to search within compound words and phrases.  • Camera search looks up words in the camera viewfinder and displays results in seconds.  • Voice search helps you find an entry when you don’t know how a word is spelled. Looking for a specific word but don't know how it's spelled? We've got you covered with our automatic ‘Fuzzy filter’ to correct word spelling, as well as ‘Wild card’ ('*' or '?') to replace a letter or entire parts of a word. LEARNING TOOLS - engaging features that help you further enhance your vocabulary. Designed to give you freedom to structure your studies, the dictionary combines several learning tools to help you be more organized, including:  • ‘Favorites’ that allow you to create custom folders with lists of words.  • Recent list which helps you to easily review looked-up words.  • Swipe-to-delete functionality in the Recent and Favorites menus.  • Word-of-the-day option to teach you a new word every day. Feel excited by the new word or definition you just learned? Share your discovery with friends on social media, email or any other option available on your device. Get even more with PREMIUM:  • Thesaurus base with audio – Access the full capacity of the app.  • Offline mode - Save words on your device and view them without internet connection.  • Priority support - Get support with priority for any app-related issues.  • No ads – Enjoy an ad-free learning experience.



  • Does not work with iOS 14.6

    By byrd409
    You can download a supposed upgrade, but you cannot “restore” your original purchase, so have to pay again. Like others, I have had to repay for this app several times already, and I do not choose to do so again. I went back to the AHD4 version, which works fine and didn’t make me pay again.
  • Great APP

    By Shenaji
    Outstanding help in my writing.
  • Frustrating

    By gindinator
    We already bought this app for $40 and after the new software update it stopped working.
  • Decent but slow

    By mpmikesell
    They’re so eager for a rating that they started interrupting my word searching to ask how I like the app from before I was even able to form an opinion about it. Frustratingly, it doesn’t announce when the word I want *isn’t* there. It just hangs empty, as if I need to type more letters. Definitions themselves seem fine. I want more in the way of etymology.
  • My Favorite Dictionary

    By Qwantum
    The American Heritage Dictionary on my iPhone is a required App. I have used The American Heritage for years and have come to rely and trust this well built reference. This is especially true when reading a book or an article that has a new word. Looking it up is easy, the definitions are clear and this improves my understanding. Thank you!
  • Aaa

    By Mike Krosoph
    1 star
  • American Heritage 5th Ed will not open in IOS 14.6

    By Understanding Latin
    I have bought this dictionary at least 3 times, and I used it many times every day for work, study, and pleasure. After last night new IOS 14.6 download, the dictionary will not open. I am devastated! What are the developers going to do?
  • Update needed

    By Traveler679
    It appears this ap doesn’t work with IOS 14.6. When I try to open it, I get a message saying the ap must be updated to work with This version of the operating system. Are there plans to update it?
  • Long time user, not happy

    By FuzzinLA
    I have purchased this app twice over the last 6 or 7 years. I first bought AHD5 because it was a fantastic dictionary. It was a proper, adult, full featured, but simply designed app. It didn’t try to compete with all of the social centric, sophomoric garbage out there. During the last big update (iOS 14.5) the app stopped working again . I gave it a week or two hopeful that an update would fix it… nada. So I contact the developer (Mobisystems- what happened to Enfour?!) They were of no help… so against my better judgment, I bought it a 3rd time!! To my horror, they redesigned the app. It’s awful- I want my money back!!
  • Top notch

    By Scribbledehobble
    Hard to beat this fine Dictionary. The app works very well, too. Highly recommended.