Từ điển & Bách khoa toàn thư

Explore reliable dictionaries and encyclopedias for clear definitions, detailed explanations, and in-depth information on a variety of topics.

Funk & Wagnalls New World Encyclopedia

Find general information on history, science, the arts, and more; entries are written by subject experts.

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Oxford Dictionaries

Find the meaning of a word, its origin, and how you might use it most effectively.

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Oxford English Dictionary

Find definitions, origins, and pronunciations for over 600,000 words. The Oxford English Dictionary (OED) is the definitive guide to how English words have changed over time and includes video tutorials to help you with your research. 

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