This is the 5253rd most frequent Korean word.
대가
"대가" means "price," "cost," or "compensation," and can also refer to a "master" or "expert" in a certain field, depending on context.
Here, '대가' is used to mean 'cost' or 'price' that one must pay, typically metaphorically for one's actions.
대가를 치러야 한다.
You must pay the price.
In this example, '대가' is used to signify a 'master' or 'expert' in a particular field.
그는 미술의 대가이다.
He is a master of art.
Here '대가' is used to denote a resulting 'consequence' or 'reward' for an action taken.