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