What does 同い年 mean?
同い年 is a Japanese noun meaning “of the same age” in English. It is written as 同い年 in kanji, おないどし in hiragana, and onaidoshi in romaji. This word is part of JLPT N1 vocabulary.
Example sentence
同時に二つのことができないんだ。
I can't do two things at a time.