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The Usage Panel is a group of nearly 200 prominent scholars, creative writers, journalists, diplomats, and others in occupations requiring mastery of language. Annual surveys have gauged the acceptability of particular usages and grammatical constructions.
Cuban revolutionary leader who overthrew the regime of Fulgencio Batista in 1959 and established a Communist state. He was Cuba's prime minister from 1959 until 1976, when he became president of the government and First Secretary of the Communist Party. In declining health, he passed de facto control of the government to his younger brother Raúl in 2006 and officially retired in 2008.
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:
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.