こうねんれいか 高年齢化 LinksSentence search for 高年齢化Sentence search for こうねんれいかKanji details for 高, 年, 齢 and 化Edit in JMdict Noun, Suru verb, Intransitive verb1. ageing (of a population); agingSee also 高齢化 Discussions Log in to talk about this word.