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In all the world, 愚 (愚 , 우 , Yú ) is quite a common largely masculine, but uncommonly female given name. The given name 愚 is characteristic of Eastern Asia, particularly South Korea, where it is a rare epicene name, and China, where it is a rare largely boy's, but infrequently feminine name. More prevalently, 愚 is the last name as well as the forename.
愚 is also a name for the fictitious and mythical characters: .