If you’ve learned some words associated with school or education like 학교 you might have noticed the reoccurring 교 theme, that’s because a lot of school and educational words use Sino-Korean!
This one will be a 2-for-1 deal – there are two different Hanja that are pronounced 교 and both used for educational terms:
校: more specific to the school and environment
敎: related to the education process