Vietnamese demonstratives normally appear at the right edge of a noun phrase: cuốn sách này “this book,” người đó “that person,” ngôi nhà kia “that house over there.” They do not behave like English this/that, which stand before the noun. Their position reflects a broader Vietnamese pattern: the noun is introduced first, then narrowed by descriptive and deictic information.
The basic spatial contrast is này “this, near the speaker/current focus,” đó “that, away from the speaker or already indicated,” and kia “that over there, more remote or contrastively separate.” This is a flexible discourse system, not a measuring tape. The more literary/anaphoric ấy has its own page on formal and literary demonstration.
Form and Noun-Phrase Position
The most useful template is:
(plural marker) + (number + classifier) + noun + modifiers + demonstrative
Anh thử chiếc áo này đi, màu rất hợp với anh.
Try this shirt on; the color really suits you.
Em đã đọc hai quyển sách đó chưa?
Have you read those two books yet?
Những người kia đang chờ xe buýt, không phải chờ chúng ta đâu.
Those people over there are waiting for the bus, not for us.
The demonstrative scopes over the whole phrase. In hai quyển sách đó, đó identifies the two-book set, not merely the noun sách. With a classifier but no lexical noun, cái này, cái đó, and cái kia mean “this one, that one, that one over there.” For people, avoid mechanically using cái; use a suitable address term, người, or the person’s role.
Cái này rẻ hơn, nhưng cái kia bền hơn nhiều.
This one is cheaper, but that one over there is much more durable.
A Three-Way Decision Aid
| Form | Core orientation | Frequent discourse use | Natural example |
|---|---|---|---|
| này | Near speaker; held, presented, or current | Current topic, immediate period | tuần này “this week” |
| đó | Away from speaker; often near addressee or pointed out | Previously mentioned or mutually known | chuyện đó “that matter” |
| kia | Visibly remote or contrastively separate | The other, more distant candidate | ngôi nhà kia “that house over there” |
Use này when bringing something into the addressee’s attention from your own immediate sphere: an object in your hand, the sentence you are discussing, or the current month. Use đó for something the addressee can identify, whether spatially or because it has just been mentioned. Use kia when pointing beyond both participants or setting one distant candidate against a nearer one.
Bạn đưa mình cái cốc đó được không?
Could you pass me that cup by you?
Quán này đông quá; mình sang quán kia nhé.
This café is too crowded; let’s go to that other café over there.
The association of đó with the addressee is common but not obligatory. Vietnamese does not grammatically encode an absolute person-based distinction comparable to some languages with a strict “near you” demonstrative. A speaker can use đó simply because an object has been pointed out or because the referent is active in discourse.
Space Becomes Discourse
Demonstratives locate information as well as objects. Vấn đề này “this issue” presents an issue as the current focus. Vấn đề đó “that issue” points back to an issue already raised or distances the speaker from it. Kia remains more strongly contrastive or visually evocative and is less usual for a neutral reference to the previous sentence.
Tôi hiểu vấn đề đó, nhưng cách giải quyết này chưa thuyết phục.
I understand that problem, but this solution is not convincing.
Lúc đó tôi chưa biết quyết định ấy sẽ ảnh hưởng đến mình lâu như vậy.
At that time, I did not yet know that decision would affect me for so long.
The second example uses ordinary conversational đó in the temporal phrase lúc đó. Its ấy illustrates the more written anaphoric choice discussed separately; the two forms need not mechanically match. Common temporal expressions include hôm nay “today,” tuần này “this week,” hôm đó “that day,” and năm đó “that year.”
Do not confuse demonstrative này with sentence-initial Này!, an informal attention-getter like “Hey!” Similarly, đấy and đó can function as sentence-final particles in regional and pragmatic patterns; those particle uses are not noun-phrase demonstratives even though they are historically and semantically related.
Reference Without Articles
These noun phrases show the different devices Vietnamese uses to construct reference:
| Phrase | Reference strategy |
|---|---|
| một con mèo | one newly counted animal |
| hai quyển sách | two counted volumes |
| những người này | a plural set anchored near/current to the speaker |
| nhà của tôi | a house identified by possession |
| một bát cơm | one container-sized portion |
| hai quyển sách đó | a counted set anchored away or in prior discourse |
English articles do not map one-to-one onto any of these elements. Once a noun is discourse-accessible, it may be bare: after Tôi mua một quyển sách “I bought a book,” a speaker can continue Sách hay lắm “The book is excellent.” Adding đó is useful when explicitly pointing back, contrasting, or ensuring identification, but it is not simply a mandatory translation of the.
Plural marking is also selective. Những người này highlights a contextually relevant set. If everyone can already identify a group, người trong phòng này “the people in this room” can be definite without những. A numeral already supplies plurality in hai quyển sách đó, so adding những would produce a different and usually ill-formed structure.
How Demonstratives Change the Interpretation
Imagine two bowls on a lunch counter:
A: Anh lấy một bát cơm nhé? B: Cho tôi bát cơm này; bát đó để cho chị bên cạnh.
A: Will you take a bowl of rice? B: Give me this bowl of rice; leave that bowl for the woman next to me.
In the offer, một bát cơm introduces an unspecified portion. In the answer, bát cơm này selects the portion nearest or held by the speaker. Bát đó then assigns another accessible bowl to someone else. No article changes form; classifier/measure choice, accessibility, and the demonstrative create the contrasts.
When pointing, kia strengthens remoteness:
Không phải căn nhà đó; tôi nói căn nhà màu vàng kia ở cuối đường.
Not that house; I mean that yellow house over there at the end of the road.
Common Mistakes
Putting the demonstrative before the noun
❌ Tôi thích này cái áo.
Incorrect — this copies English demonstrative order.
✅ Tôi thích cái áo này.
I like this shirt.
The classifier and noun precede the right-edge demonstrative.
Omitting a classifier while counting
❌ Tôi đã đọc hai sách đó.
Incorrect in neutral standard Vietnamese — counted books need an appropriate classifier.
✅ Tôi đã đọc hai quyển sách đó.
I have read those two books.
Treating đó as a definite article
❌ Mặt Trời đó mọc ở hướng đông.
Incorrect for a generic fact — đó wrongly contrasts or points to the sun.
✅ Mặt Trời mọc ở hướng đông.
The Sun rises in the east.
English the can correspond to a bare Vietnamese noun when uniqueness or context already establishes reference.
Adding plural marking mechanically
❌ Những hai quyển sách này đều đắt.
Incorrect — những does not combine this way with an exact numeral.
✅ Hai quyển sách này đều đắt.
Both of these books are expensive.
Key Takeaways
- Put the demonstrative at the noun phrase’s right edge: cái áo này, hai quyển sách đó.
- Use này for the near or current sphere, đó for an accessible/indicated referent, and kia for remote or contrastive reference.
- Physical distance is only the prototype; prior mention and shared attention often control the choice.
- A demonstrative can establish identity, but it is not a Vietnamese definite article.
The demonstrative system is therefore simultaneously spatial and conversational. Physical distance supplies the prototype, but shared attention, prior mention, and contrast often determine the natural form in real interaction.
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