超高齢化 ちょうこうれいか Meanings Noun extreme population aging (ageing) Kanji 超 exceed. Read as チョウ. 高 high. Read as コウ. 齢 age. Read as レイ. 化 transform. Read as カ. Words containing 超高齢化 超高齢化社会 (ちょうこうれいかしゃかい) super-ageing society (aging) Jinuma: Japanese Dictionary · Word lists