The most common Korean word for “age” is 나이 (nai). There is one more word with a similar meaning — compare them below. 「age」는 한국어로 나이.
Learn 나이 free — flashcards, audio and review →「나이」 단어장으로 무료로 외우기Words and levels: TOPIK I essentials (National Institute of Korean Language standard curriculum, KOGL Type 1) · examples: Cheesepotato