The most common Korean word for “hobby” is 취미 (chwimi). 「hobby」는 한국어로 취미.
Learn 취미 free — flashcards, audio and review →「취미」 단어장으로 무료로 외우기Words and levels: TOPIK I essentials (National Institute of Korean Language standard curriculum, KOGL Type 1) · examples: Cheesepotato