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