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