noun, noun which may take the genitive case particle 'no'
same generation; same age group; coeval
Refers to people born around the same time, or to the fact of being in the same generation. Often used with の to modify nouns.
彼は私と同年代です。
He is the same generation as me.
同年代の人たちと話すのは楽しい。
It's fun to talk with people of the same generation.