This is the 4949th most frequent Korean word.
그것이
"그것이" means "that (thing)" in English.
The word '그것이' here acts as a noun phrase representing 'that' and functions as the subject of the sentence.
그것이 내가 찾던 답이다.
That is the answer I was looking for.
'그것이' serves as the subject and refers to 'it,' emphasizing the thing that needs understanding in context.
그것이 어떻게 작동하는지 이해할 필요가 있어요.
It is necessary to understand how it works.
In this sentence, '그것이' means 'that' and acts as the subject of the verb 'think,' indicating the thing considered important.