The most common Korean word for “stick” is 붙이다 (butida). There is one more word with a similar meaning — compare them below. 「stick」는 한국어로 붙이다.
stick to; cling to
TOPIK 2 · verb
Words and levels: TOPIK I essentials (National Institute of Korean Language standard curriculum, KOGL Type 1) · examples: Cheesepotato