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