返納 へんのう Meanings Noun, する verb, Transitive returning (to the authorities); restoring Kanji 返 give back. Read as ヘン. 納 deliver. Read as ノウ. Common phrases 免許を返納する Words containing 返納 免許返納 (めんきょへんのう) voluntarily giving up one's driver's license (e.g. because of old age) Jinuma: Japanese Dictionary · Word lists