Cambridge Dictionary of American English

Oxford Advanced Learner´s Dictionary, 9th ed.

Longman Basic English Dictionary

Longman Advanced Learners´ Grammar + Key

Longman Picture Dictionary

Longman Dictionary of Contemporary English, 6e (Paper)

Longman Elementary Dictionary

Oxford Large Print Thesaurus

The New Penguin English Dictionary

Longman Dictionary of English Language and Culture

Longman WordWise Dictionary + CD-ROM, 2e

Cambridge Idioms Dictionary 2nd ed.