The word that adds to the meaning of noun by indicating towards it is called Demonstrative Adjective.
- This scooter does not belong to me.
- That fault was yours not mine.
- These stories about ghosts cannot be true.
- Those monuments were built centuries ago.
- Such an idea cannot be praised.
In the above sentences, This, That, These, Those and Such point towards the
nouns scooter, fault, stories, monuments and an idea, respectively. Hence, they are