This is the 14564th most frequent Korean word.
뭔가를
"뭔가를" means "something" (as an object in a sentence).
In this sentence, "뭔가를" is used as an object, indicating an unspecified thing someone intended.
그는 뭔가를 말하려고 했어요.
He tried to say something.
Here, "뭔가를" serves as an object, expressing an undefined entity being sought.
나는 뭔가를 찾고 있었어요.
I was looking for something.
In this usage, "뭔가를" points to an unspecified item involved in the action.