Dictionary / Vocabulary / 孝行
こうこう
filial piety; showing devotion (to someone)
JLPT N2 common word
孝行したいときに親はなし。
When one would be filial, one's parents are gone.
敬老の日には祖父母を訪ねて孝行します。
On the Respect-for-Senior-Citizens Day, we visit our grandparents and do nice things for them.