The most common Korean word for “repair” is 고치다 (gochida). There is one more word with a similar meaning — compare them below. 「repair」는 한국어로 고치다.
to repair; to fix
TOPIK 1 · verb
Words and levels: TOPIK I essentials (National Institute of Korean Language standard curriculum, KOGL Type 1) · examples: Cheesepotato
치즈감자