Longman Dictionary of American English

The Fifth Edition of Longman Dictionary of American English is the key to vocabulary building! Now with the full contents online, plus online Thesaurus and Vocabulary Checker.

Clear and comprehensive

109,000 words, meanings and phrases, including words from the Academic Word List
59,000 example sentences, showing thousands of academic words and collocations
Clear definitions written using the Longman American Defining Vocabulary of just 2,000 common words
Words for content areas such as Science and Social Studies

The key to vocabulary building

Collocation boxes show combination of words that are often used together, such as strong interest, highly successful, and take a test
Integrated Thesaurus explains thousands of synonyms and antonyms
3,000 etymologies explain the origin of words -15,000 etymologies online
Learner’s Handbook on Writing, Collocations and Grammar
Workbook exercises for self-study and classroom use

Entire contents online

Pronunciation of all the words and example sentences, and pronunciation practice
Longman Vocabulary Checker: find out which type of vocabulary is used in the text you are reading and which words you should learn
Thesaurus: choose the right word and build your vocabulary
Topic Vocabulary: find all the words you need to write about common topics such as Describing Places, Technology, Sports and Relationships
Academic Study Center with interactive exercises for vocabulary, reading and writing, and exam practice for TOEFL