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male
manly; brave; heroic
larger (of the two); greater
「雄」 has other readings with different meanings.
雄のライオンは立派なたてがみを持つ。
Male lions have magnificent manes.
雄と雌では体の大きさがかなり違う。
Males and females differ in body size.
雄の孔雀は美しい羽を広げて求愛する。
Male peacocks court by spreading beautiful feathers.