ため年どしためどしMeanings1nounsame ageslangSlang term used among young people to refer to someone born in the same year. Often used in casual conversation.彼かれはため年どしだから、話はなしやすい。He's the same age as me, so he's easy to talk to.ため年どしの友とも達だちとよく遊あそぶ。I often hang out with friends who are the same age.