Articles
Vietnamese has no articles. There is no "the" and no "a", and a bare noun covers all of it:
Tôi đọc sách. — "I read a book / the book / books."
What Vietnamese has instead is a classifier system, and the classifier does most of the work an article does in English — it is how you say "a", how you point at "the one", and it is what a noun needs before it can be counted.
"The": classifier + noun (+ this / that)
Put the classifier in front of the noun and you are talking about a particular one:
| Vietnamese | gloss |
|---|---|
| sách | book(s), books in general |
| cuốn sách | the book (one particular book) |
| cuốn sách này | this book |
| cuốn sách đó | that book |
| cuốn sách kia | that book over there |
The demonstrative comes after the noun, and after any adjective: cuốn sách cũ này — "this old book". Three distances: này (near me), đó / đấy (near you, or mentioned), kia (over there).
"A": một + classifier + noun
Một "one" plus the classifier is the indefinite article:
| Vietnamese | gloss |
|---|---|
| một cuốn sách | a book |
| một con mèo | a cat |
| một cái bàn | a table |
| một người bạn | a friend |
The classifier is chosen by what kind of thing the noun is, exactly as in Mandarin and Cantonese. The ones you cannot avoid:
| classifier | for | example |
|---|---|---|
| cái | inanimate things, the general one | cái bàn, cái ghế, cái điện thoại |
| con | animals — and knives, roads, rivers, boats, eyes | con mèo, con dao, con đường |
| người | people | người bạn, người thầy |
| cuốn / quyển | books, notebooks (south / north) | cuốn sách |
| chiếc | vehicles, and one of a pair | chiếc xe, chiếc giày |
| bức | flat things that face you: walls, pictures, letters | bức tường, bức tranh |
| cây | long thin things: pens, trees, bridges | cây bút, cây cầu |
| quả / trái | fruit, and round things (north / south) | quả cam, quả bóng |
| tờ | sheets: paper, newspapers, banknotes | tờ báo, tờ tiền |
| ly / cốc | glasses of something (south / north) | ly cà phê |
When in doubt, cái is the fallback for things and nobody will mind.
When to use nothing
Generic statements, plurals with no count, and anything already obvious take the bare noun — precisely where English insists on an article:
Mèo thích cá. — "Cats like fish." (generic) Tôi có xe. — "I have a car / a bike." (indefinite, uncounted) Cho tôi cà phê. — "Give me (a) coffee."
Rule of thumb: reach for một + classifier when "one, a single" matters; reach for classifier + noun (+ này / đó) when "that particular one" matters. Otherwise say nothing. The bare noun is the default, not a shortcut.
Plural "the": các, những
For a definite set, các (all of them) or những (some of them) goes in front — see the plurals chapter.
các bạn — you all, the friends (all of them) những người này — these people (this particular group)
If you speak Korean
Classifiers are 수 분류사, and the list is nearly the same one: cái is 개, người is 명 or 분, con is 마리, cuốn / quyển is 권, chiếc is 대 (for vehicles), tờ is 장, cây is 자루. The difference is the order: Korean says noun – number – classifier (책 세 권), Vietnamese says number – classifier – noun (ba cuốn sách). And where Korean 이/그/저 go before the noun, Vietnamese này / đó / kia go after it — the same three distances, the other side.
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