This is the 1135th most frequent Korean word.
말이다
"말이다" means "I mean" or "I'm talking about" in English.
Here '말이다' is used to emphasize or clarify the previous statement.
그 영화가 재미있다는 말이다.
It means that the movie is interesting.
In this sentence, '말이다' emphasizes a particular subject, 'your words,' bringing attention to their importance.
너의 말이다, 항상 신중히 들어야 할 필요가 있어.
Your words, they always need to be heeded with care.
'말이다' here translates to the speaker asserting or clarifying the situation explicitly to the listener.