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Cái đó là của tôi.
That one is mine.
Used to refer to a specific thing or object that is farther away from the speaker than from the listener, or previously mentioned.
Bạn muốn mua cái đó không?
Do you want to buy that one?
Cái đó trông rất đẹp.
That one looks very beautiful.
Commonly used in spoken Vietnamese to point out or refer to an object without naming it explicitly.
Always use 'cái' before 'đó' when referring to objects (e.g., 'cái đó' for a thing, 'quyển đó' for a book). Omitting the classifier sounds unnatural in most contexts.
'Cái đó' indicates something farther from the speaker than the listener, while 'cái này' refers to something closer to the speaker.
In Vietnamese, 'cái đó' is a demonstrative phrase combining 'cái' (a classifier for objects) and 'đó' (there/that). It is used similarly to 'that one' in English but often requires the classifier 'cái' for countable nouns.