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