The most common Korean word for “what” is 뭐 (mwo). There are 2 more words with a similar meaning — compare them below. 「what」는 한국어로 뭐.
Learn 뭐 free — flashcards, audio and review →「뭐」 단어장으로 무료로 외우기Words and levels: TOPIK I essentials (National Institute of Korean Language standard curriculum, KOGL Type 1) · examples: Cheesepotato