Korean Grammar Notes TTMIK
Book 1: lesson 7

This, That, It / 이, 저, 그, 거/것

이 = this (near you) 저 = that (over there) 그 = the/that (near the other person) 거 = 것 = that (over there)

Q: What if you don't see that thing, that object, or that person in sight? What if its not there? How do you refer to it?

A: It is very simple just use the word “그“ or “그것“.