Nantoka/철칙cheolchik철칙 (cheolchik) is a Korean word meaning “ironclad rule”.Meanings1ironclad rulePart of speechnounHanja鐵則Related words전철subway지하철subway지하철역subway station규칙rule철도rail법칙rule불규칙irregularity규칙적regularity규칙적regular원칙rule철iron철강steelStudy Korean with flashcards →