말이었다

was something someone said

→ 말
phrase Rare #21,110
was something someone said 말 can refer to a word, remark, or something someone wanted to say; 이었다 means “was.”
KO: 그건 내가 하고 싶었던 말이었다.
EN: That was what I wanted to say.

또 모르는 말 이었다.

It was another word I didn’t know.

그것도 맞는 말 이었다.

That was true, too.

바로 그게 내가 하고 싶은 말 이었다.

That's exactly what I was trying to say.

놀리는 말 이었다.

It was a teasing remark.

그게 내가 하고 싶은 말 이었다.

That's what I wanted to say.