The most common Korean word for “also” is 또 (tto). There is one more word with a similar meaning — compare them below. 「also」는 한국어로 또.
also; again
TOPIK 1 · adverb
also; as well; as expected
TOPIK 2 · adverb
Words and levels: TOPIK I essentials (National Institute of Korean Language standard curriculum, KOGL Type 1) · examples: Cheesepotato
치즈감자