This is the 993rd most frequent Vietnamese word.
kia
"That" or "over there" (used to indicate something further away).
Here, 'kia' refers to a person, serving as a demonstrative adjective to indicate someone at a distance.
Người kia là họa sĩ nổi tiếng.
That person over there is a famous artist.
In this context, 'kia' acts as a demonstrative pronoun to identify a location that is being referred to in the distance.
Kia là cánh đồng lúa mà tôi đã nói.
There is the rice field that I talked about.
In this sentence, 'kia' is being used as a demonstrative pronoun to indicate the house that is far from both the speaker and listener.