bi·lin·gual  (b ī-l ĭng gw əl)
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adj.1. a. Using or able to use two languages, especially with equal or nearly equal fluency. b. Using two languages in some proportion in order to facilitate learning by students who have a native proficiency in one language and are acquiring proficiency in the other: bilingual training; bilingual education. 2. Of, relating to, or expressed in two languages: a bilingual dictionary. n. A person who uses or is able to use two languages, especially with equal fluency.
bi·lingual·ism n. bi·lingual·ly adv. |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2019 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
Indo-European Roots
Semitic Roots
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.
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