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