Longman Dictionary of Contemporary English is the leading dictionary for learners of English of all ages and levels who want to learn more about English useage.
Contains the complete texts of over 100 Oxford University Press dictionaries and reference titles. Contains the complete texts of over 100 Oxford University Press dictionaries and reference titles.
A lexical database that provides synonyms and other related words of English-language words. Created by the Cognitive Science Laboratory of Princeton University.
