THE USAGE PANEL
The Usage Panel is a group of nearly 200 prominent scholars, creative writers, journalists, diplomats, and others in occupations requiring mastery of language. The Panelists are surveyed annually to gauge the acceptability of particular usages and grammatical constructions.
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The online searchable American Heritage Dictionary includes definitions, pronunciations, etymologies, and feature notes. For further information, including the Indo-European Roots Appendix and the Semitic Roots Appendix, you can purchase the dictionary as an iOS or an Android app—or buy the deluxe printed edition.
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OPEN DICTIONARY PROJECT
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The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2011 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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