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Collins COBUILD Advanced app for iPhone and iPad


4.4 ( 8784 ratings )
Reference Education
Developer: SELVAS AI Inc.
24.99 USD
Current version: 3.8.0, last update: 4 years ago
First release : 13 Nov 2009
App size: 203.36 Mb

The complete Collins COBUILD Advanced Dictionary • Made specially for learners of English • Over 146,000 words, meanings and examples • Thousands of notes on grammar and ways to use words • No internet connection needed.


Collins is one of the top makers of English language dictionaries in the world. Its language specialists make use of large amounts of language data to create up-to-date dictionaries with many examples and grammatical information. The word descriptions are designed specially to help language users know how and when to best use a word.

This app contains the full version of the Collins COBUILD Advanced Dictionary, 6th edition, 2009.

Dictionary features include:
• 41,000 word entries and 105,000 text samples including all frequently used words.
• a long list of phrasal verbs with detailed descriptions of their meaning.
• meanings explained using commonly used words only, so learners can easily understand entries.
• British and American English vocabulary. British/American-only words are specially marked.
• explanations and examples use natural sounding, commonly used grammar and expressions.
• thousands of examples of real English showing learners how a word is normally used.
• audio files with American native speakers‘ pronunciation of words and sentences.
• a pronunciation guide (IPA) with word stress shown next to each word entry.
• large amount of grammatical information:
-- parts of speech (noun, verb, adj. etc.) of each word.
-- irregular verb forms and noun plurals.
-- which prepositions are used with which verbs and adjectives.
-- whether a noun is countable or non-countable.
• no internet connection needed to use dictionary

--Search Features—
• Wildcard search: enter “?” or “*” in place of a letter when you are unsure of the spelling (e.g., “man*ver” retrieves the word “maneuver”).
• search for similar words: e.g. clicking on “adding” in an entry yields a list of similar and derivative words: “addition”, “additional”, “additive”, “addition reaction”.
• Browse through the dictionary alphabetically or flip from one entry to the next with a flick of a finger.
• link to Google so that you can search for more information on particular words.

--Special features for revising vocabulary—
• History menu lists all your recent word searches.
• save words and expressions to any number of flashcard folders.
• mark flashcard words which need you still need to memorize.


** In order to conform to iOS guidelines, we have had to raise the lowest compatible iOS version to 9.0 **


--DioDict 3 dictionary engine for iPhone—
DioDict is the number one brand in mobile phone dictionary software market. A dedicated team of over 100 developers, planners and quality control specialists work together to create high quality software using the latest language technology. Our dictionaries are tested thoroughly before release and are pre-installed on a large range of mobile phones old and new, including Samsung and LG smartphones.

■ CS center : [email protected]

Our company name is now SELVAS AI officially changed from DIOTEK.
The new name reflects our dedication to Artificial Intelligence technology, all of us at SELVAS AI strive to do our best for our customers.

Pros and cons of Collins COBUILD Advanced app for iPhone and iPad

Collins COBUILD Advanced app good for

I am from Recife in Brazil South America, and I dont want to do this,I dont do reviews, but this dictionary is so wonderful, i felt like it needed one... So basically, I would like to say that,this is the best dictionary in the world for Brazilians that are trying to learn English.Mainly because when it describes a word? It describes it in context for the word, in a phrase or something... So,you already know from the definition how to use it, and the purpose that the word in the English language and grammar has in the phrase. Its simply the best.The only problem is that its its very limited in the the number of words it has, it has only a few, not a lot of words... I wish it had as many as its textbook has, and you could buy that app with that many words in it.
Good for English learners, but more words needed for the advanced level.
I cannot look up any phrasal verbs for take. Please add them to this great dictionary. ブリティッシュ 英語の発音がなくなったのは残念ですが、 素晴らしい機能を備えた辞書アプリだと思います。 出来れば、 持っているすべてのデバイス間で、 ヒストリーが同期されれば最高ですね。
while Id like to give a five-star to the contents, its too expensive, so I minus one from the full score.
But it is a little unconfortable to move the right page(i use it on i-pad) only by touching....well i want it to be fixed. Thats all.
Handy dictionary to use anywhere without those weight and volume, And also cheaper!!! Yae~!

Some bad moments

Very disappointed that the "audio" function reads only headwords and not any of the examples which constitute the overwhelming bulk of the book. Go and buy yourself the Oxford Advanced English Learners Apps instead: that one reads 95% of the examples out loud to you which is a lot!
Have been waiting for a major update for a long time. Needs more functions. Will give 5 stars when a major update comes. Please update: 1. Optimized for iOS 9 2. Optimized for 3D Touch 3. Better search function 4. Jump function 5. iCloud bookmark 6. Optimized for retina 7. Search from another app 8. Better pronunciation 9. Thesaurus feature Please!
I can totally not understand how the developper of this App decided to eliminate British pronunciation from the dictionary that has been developped in Britain and written in authentic British English. Covering both British and American pronunciation and spelling is one of the biggest value of this dictionary. On top of that, eliminating any contents from the original dictionary is completely irrational. This is absolutely unacceptable update. If you would like to specifically focus on American English, this publisher has an American English dictionary as a separate edition.
PLS REMOVE THE "SHOPPING CART" ICON! AFTER I PAID $25 I STILL HAVE TO WATCH YOUR SUCKING ADS TIME TO TIME???