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COBUILD Advanced Learner’s Dictionary

Word definitions in full sentences

"COBUILD Advanced Learner’s Dictionary"is an electronic dictionary app that compiles the English-English dictionary, “Collins COBUILD Advanced Leaner’s Dictionary [8th edition]”, making it perfect for learners of English.

The biggest features of COBUILD are not only that it offers word definitions in full sentences, but also Thesaurus、Usage Note、Word Link、Word Partnership columns for definitions with data from Heinle Cengage Learning, and, thanks to Monokakido's unique "Trace and Jump®" function, you can easily get English definitions for English words you don't understand.


Beautifully, Quickly

This product is compatible with iPhone and iPod touch 3.5-inch models, right up to the latest iPhone 6 Plus and iPad Air 2. It features a display that is remarkably better-looking than those seen on portable devices until now. Also, the iPad version uses a split view for greater clarity and usability, allowing you to search and display contents seamlessly, resulting in faster display of contents and greater agility than ever before.

Evolved Search Function

Find your desired vocabulary with confidence. Have you ever tried searching for words while only remembering how to spell the first few letters? Using this product's new function, "Pattern Search", you can set search conditions and look up words in a new way: for example, a four-letter word starting with "w" and ending with "y", or a word in which only specific letters in the word order are unknown. It is convenient for vocabulary you cannot remember well, and for solving crosswords.

Needless to say, as with our other dictionaries, this product features "Index Search", "Example Search" and "Idiom Search", allowing you to search for required information with certainty. "Example Search" allows you to search for your required wording through various example phrases — a powerful function for English compositions, such as emails. Also, as it is compatible with the "App Extension", you can search vocabulary selected on Safari using this product.

Additionally, re-search operations can be flexibly set using the "Drag and Delete" function, which clears the search text when a search result is dragged, or the "Erase Search Text" setting, which clears the search text during startup.


Plentiful Audio Data Recordings

Search, listen, memorize. This product features approximately 71,000 audio data recordings (American English pronunciation). Not only can you learn the word's meaning, but also the correct pronunciation. Additionally, you can also easily change the playback volume from within the application.


Jump and Search

Please trace a word you don't understand. We included the Trace and Jump feature, which was well received in "Daijirin. Just by tracing a word you don't understand and releasing your finger, you can search it instantly.

Also Supports 3D Touch

The application supports "3D Touch", a new feature on iPhone 6s. Lightly press on the search results, bookmarks, or display list to have a look at its explanation using 3D Touch's Peek function. Press a little deeper to Pop into the explanation and open it. It is also compatible with Quick Actions, so searches, bookmarks and history can be quickly accessed from the home screen.


Bookmarks and History

Just looked that up? This product includes bookmark and history functions, so important vocabulary and words that you find yourself looking up over and over again can be bookmarked, and vocabulary that you just searched can be easily checked from the history. You can also bookmark idioms and examples, and the history function features a display history and search history. All of this enables you to record the items you have looked up in more detail. There is no limit on the number of bookmarks you can have, while you can record up to 500 items in the history. These items can be separately deleted, and the order of the bookmarks can be rearranged.

Additionally, you can sync your bookmarks across multiple devices using iCloud. If you bookmark a word that has caught your attention while on the move, that word will also be conveniently bookmarked on your iPad at home.


Set Your Own Preferences

Make it the way you like. "Collins COBUILD Advanced Dictionary of American English" features the following settings, allowing you to use the application according to your preferred settings. The text size of such items as search results or the main body can be changed, making it possible to adjust to a size that is clear and user-friendly.

  • Color setting
  • Main body text size
  • List text size
  • Volume control
  • Deletion of search text
  • Delete by shaking
  • Clipboard search
  • Sync bookmarks
  • Full screen layout (iPad only)



COBUILD Advanced Learner’s Dictionary [8th edition]

The 8th edition of the Collins COBUILD Advanced Learner's Dictionary offers up-to-date coverage of today's English in a clear, attractive format. This dictionary is ideal for upper-intermediate and advanced learners of English. It covers all the words, phrases, and idioms that students need to master in order to speak and write effective English. With full-sentence definitions written in simple, natural English, this dictionary is easy to use and understand. The examples, taken from the 4.5-billion-word Collins Corpus, show learners how the words are used in authentic contexts.The dictionary also provides extensive help with grammar, including grammar patterns for many of the examples, and a grammar reference in the supplement. A wide range of vocabulary-building features, many of them with full-colour illustrations, encourage students to expand and improve their accuracy and fluency.The dictionary also includes a Visual Thesaurus, which provides alternatives to the 50 most over-used words in English; an Activity Guide, which helps students learn how to get the most out of the dictionary; a Writer's Handbook, which gives guidance on spelling, punctuation, letter-writing and CVs, and a Speaker's Handbook, which gives advice on the best set phrases to use in specific situations.The Collins COBUILD Advanced Learner's Dictionary provides invaluable and detailed guidance on the English language, and is the complete reference tool for learners of English.

What is (COBUILD)?

(COBUILD)is an acronym for "Collins Birmingham University International Language Database"" and is the name of a collaborative research project between the famous British dictionary publisher Collins and Birmingham University. It is an epoch-making monolingual dictionary of "living English" that uses the huge database accumulated in the corpus [[[― The Bank of English™ ]]]. It was also the world's first dictionary to be based on a corpus and has been widely loved by English learners around the world for more than 20 years.

Compare COBUILD Series

Product コウビルド英英辞典(第8版)
Learner’s Dictionary
American English Dictionary 2
COBUILD 高级英汉双解词典
HeadlineAbout 46,000About 42,000About 23,000
AudioAbout 71,000About 34,000About 17,000
DefinitionAbout 65,000About 60,000About 39,000
ExampleAbout 86,000About 71,000About 44,000