Collins COBUILD Advanced Learner’s Dictionary（9thEdition）《柯林斯高阶英语学习词典》(第九版)是英语学习词典界先锋Harper Collins推出的一本英英词典。从第一版以来，这本词典就风靡全球，广受青睐，初版至今已经销售上亿册。虽说书名为“高阶词典”，但其实非常适合中级和入门的英语学习者，因为其独特的例句释义形式，使得学习者对单词的理解更加深刻，从而达到更有效的学习输入效率。

推荐理由：
1.新版第九版，全面修订，并增加了大量的新词新义及例句，更加准确反映当代英语的特点；

2.柯林斯独树一帜的整句释义方法——2500个常用词汇，组成简单易懂的句子，解释英语词汇，中学以上程度的学习者就可轻松使用，程度一般的读者适合用以培养语感；
3.例句均由柯林斯COBULD（Collins Birmingham University International Language Database）45亿语料库中精心挑选，真实可靠，体现词汇的实际用法；
4.彩色印刷，图文并茂，词汇讲解详细，拓展丰富，添加有词语搭配（Collocation）、用法（Usage）、同义词（Synonyms）、词缀（Suffix、Prefix）、词汇历史（Word History）、词汇语境（Vocabulary in Context）、图解词典（Visual Dictionary），有助更高效学习；
5.重点词汇，分级标注，非常适合备考各类英语考试，如英语四级、英语六级、托福、雅思、剑桥英语考试等等；
6.词条加入语用学标签，阐释词汇的延伸意义，关注语言的沟通作用；
7.丰富实用的附录内容，包含写作风格指南、语言的运用、商务英语语法指南、学术英语语法指南、高频词汇手册、学术词汇手册，全面帮助学习者提高语言技巧；
8.纸质上乘，版面舒适，大大提升了使用感。
Welcome to the ninth edition of the Collins COBULD Advanced Learner’s Dictionary.

In keeping with COBUILD’S long-established user-friendly tradition, this new edition will help you to understand not only the meanings of words, but also how to use them properly in context. The addition of completely revised and updated language features will help you to acquire an even better understanding of how real English works. These features include detailed information about collocation, word history, and usage — you can find out more in the ‘Guide to dictionary features’ on pages viii-x.
The inclusion of a wealth of new words and meanings taken from areas such as social media, technology, and popular culture means that the Collins COBUILD Advanced Learner’s Dictionary continues to reflect today’s English. In addition, this new edition boasts thousands of new and updated example sentences to ensure that language is shown in a meaningful context.

As well as checking and explaining the meanings of thousands of existing words, COBUILD’s lexicographers have continued to ensure that our 4.5-billion-word database — the Collins Corpus — is kept up to date. The corpus contains English language material from thousands of different written and spoken sources. Material is downloaded from websites, and daily feeds are received from newspapers.

The corpus lies at the heart of each entry. Corpus research helps lexicographers to make confident and accurate decisions about the different senses of a word. It also informs the choice of words that are suitable for the dictionary (based on word frequency), the language used in the full-sentence definitions, the choice of examples, and the grammatical information given. Finally, it helps us to provide accurate information relating to the connotations of particular words — whether they express approval, disapproval, a particular emotion, or politeness, for example.

New to this edition are a number of supplementary sections which will help you to use English accurately and appropriately. The ‘Writing style guide’ and ‘Language in use’ sections help you to choose the right language for both written and spoken communication in a range of everyday situations. In addition, the updated ‘Grammar guide’ gives you the information you need to be able to write in a way which is appropriate for academic and business contexts.

Finally, we are also pleased to announce that the full dictionary text is available both for Kindle and online, so that COBUILD is always available to you, wherever you are. Set it as your default Kindle dictionary, or just go to www.collinsdictionary.com.

We hope you will find this new edition of the Collins COBUILD Advanced Learner’s Dictionary a valuable resource that complements and enhances all areas of language study.

Collins COBUILD Advanced Dictionary《柯林斯高阶英语词典》是一本适合各阶段英语学习者使用的英英词典。其词条都以用完整例句的形式来解释，让学习者更加清晰、直接地感受词汇的用法。且每个词条均有详尽的语法用法结构以及完整的单词构词法解析并附大量的同义词反义词词条，务求使读者每查一个单词都能收获完整的知识体系。而除了词典正文，本书还包含丰富实用的附录内容，如商务英语、学术英语语法指南、写作风格指南、高频词汇手册、学术词汇手册等等。《柯林斯高阶英语词典》一书多用，是有效提高英语水平的一本实用性词典。
The 9th edition of the Collins COBUILD Advanced Learner’s Dictionary has been revised and updated to include detailed coverage of today’s English in a clear, attractive format.

Ideal for upper intermediate and advanced learners of English, this dictionary covers all the words, phrases and idioms that students need to master in order to speak and write effective English. Thousands of updated examples taken from the 4.5- billion word Collins Corpus, show learners how the words are used in authentic contexts. The dictionary offers extensive help with grammar through the inclusion of grammar patterns at examples, plus a new supplement to help with academic and business grammar.

Additional information is provided throughout to help learners improve their knowledge of collocation, etymology and synonymy. Informative and relevant vocabulary panels show how words are used in a range of everyday contexts.

In addition, this dictionary offers learners guidance on how to communicate effectively in English. The Language in Use supplement provides a wealth of invaluable information on how to write and speak English for different purposes using the appropriate language, style, and tone. Resources and activities to help learners make the most of the dictionary are available for free online.

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.

哈珀·柯林斯出版集团（Harper Collins）系新闻集团（News Corp.）的全资子公司，总部位于纽约，是全球几大英文书籍出版商之一。柯林斯是哈珀·柯林斯出版集团的一个分支机构。从1819年开始，柯林斯就一直在词典出版方面处于先导地位，出版了大量的英语及其他语言的工具词典，包括有名的Collins COBUILD Dictionary《柯林斯COBUILD词典》、Collins Student’s Dictionary《柯林斯学生词典》、Collins Easy Learning Grammar and Punctuation《柯林斯轻松学：语法和标点》等。
HarperCollins Publishers LLC is one of the world’s largest publishing companies and is part of the “Big Five” English-language publishing companies, alongside Hachette, Holtzbrinck/Macmillan, Penguin Random House, and Simon & Schuster. The company is headquartered in New York City and is a subsidiary of News Corp. The company name is a combination of several publishing firm names: Harper & Row, an American publishing company acquired in 1987, whose own name was the result of an earlier merger of Harper & Brothers (founded 1817) and Row, Peterson & Company; together with UK publishing company William Collins, Sons (founded 1819), acquired in 1990. It had published several famous dictionaries, such asCollins COBUILD Dictionary,Collins Student’s Dictionary,Collins Easy Learning Grammar and Punctuationand so on.

Acknowledgements  
About COBUILD dictionaries  
Guide to dictionary entries
Guide to dictionary features
Introduction  
Definitions
List of Grammatical notations
Explanation of grammatical terms
Pronunciation
Irregular verbs
Dictionary A-Z
Writing style guide
Special information
Language in use
General grammar guide
Business English grammar
Academic English grammar
Glossary of grammatical terms
Frequent words  
Academic Word List
Credits