Longman Phrasal Verbs Dictionary 2nd Edition (for Bluedict and MDict)

Merriam-Webster's Advanced Learner's Dictionary (for Bluedict and MDict)

Designed for learners of English, this groundbreaking new dictionary from North America-s foremost language experts provides in-depth and up-to-date coverage of basic English vocabulary, grammar, and usage. 

Oxford Essential Dictionary (for Bluedict and MDict)

Oxford Essential Dictionary gives all the essential help and information elementary and pre-intermediate learners need.

Updated with 200 NEW words, Oxford Essential Dictionary includes over 24,000 words, phrases, and meanings.

2,000 of the most important words in English are marked as keywords, so students know which words to learn first.

Notes give extra help with grammar, pronunciation, and spelling.

science and technology words vocabulary in context

VOCABULARY IN CONTEXT was written especially for you. The program was designed to enrich your personal “word bank” with many hundreds of high-frequency and challenging words. There are six thematic books in the series—Everyday Living, Workplace and Careers, Science and Technology, Media and Marketplace, History and Geography, and Music, Art, and Literature.

Collins Primary Illustrated Dictionary: Boost your word power, for age 8+ (Collins Primary Dictionaries)

Especially designed for children aged 8 and over, Collins Primary Illustrated Dictionary contains full sentence definitions, example sentences, parts of speech (noun, verb, etc) as well as synonyms, word histories, cross-references and pronunciation. Coll