This is the 560th most frequent Chinese word.
那个
"That; um; er"
The word '那个' is used here as a demonstrative pronoun meaning 'that' to specify which apple is being referred to.
那个苹果很甜。
That apple is very sweet.
In this sentence, '那个' serves as a demonstrative pronoun emphasizing 'that one' or a specific item intended among several.
我要买那个。
I want to buy that one.
Here, '那个' operates as an adjectival phrase modifying the noun 'actor' to indicate a specific and well-known individual.