This is the 3098th most frequent Korean word.
反
The Korean word "反" means "reverse," "opposite," or "anti-."
Here, '반대' (反对) uses '反' to mean 'oppose' or 'contrary to'.
그의 의견에 반대합니다.
I oppose his opinion.
In this sentence, '반대' (反对) showcases '反' as representing 'opposite' or 'contrary'.
그는 반대의 입장을 취했다.
He took a contrary stance.
The term '반성' (反省) includes '反' to convey 'reflection' or 'introspect'.