| The American Heritage® Dictionary of the English Language: Fourth Edition. 2000. |
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| twain |
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| PRONUNCIATION: | tw n |
| NOUN, ADJECTIVE & PRONOUN: | Two. | | ETYMOLOGY: | Middle English tweien, twaine, from Old English tw gen. See dwo- in Appendix I.
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| The American Heritage® Dictionary of the English Language, Fourth Edition. Copyright © 2000 by Houghton Mifflin Company. Published by the Houghton Mifflin Company. All rights reserved. |
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