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Across the world, Ader (Ader , Адер , Áder ) is quite a common epicene given name. The forename Ader is characteristic of Somalia, where it is quite a common epicene name, the Democratic Republic of the Congo, where it is quite a rare boy's name, and Nicaragua, where it is quite a rare principally male, but very infrequently female name. Measured by absolute frequency, it is the most numerous in Sub-Saharan Africa, particularly Somalia, the Democratic Republic of the Congo, and Ethiopia. Also, Ader is the last name as well as the forename.