How to Say “One” in Vietnamese

một
[mot̚˧˨ʔ]
The Vietnamese word for 'one' is một.
một is the cardinal number 1. When you want to specify one item or thing before a noun, you can use the phrase Một cái. For example, you can use it to say 'one cup' as một ly or 'one ticket' as một tấm vé.
Meaning: cardinal number 1 (num)

Related words

How does it change in a sentence?

When counting objects, một is used before a classifier and the noun. To say 'one person', you must use a classifier, such as một người.

Did you know?

  • The word một is closely related to mốt, which means 'the day after tomorrow'.
  • If you use the wrong classifier with một, you might accidentally change the perceived shape or type of the object you are counting.
  • The word một is used in the phrase một mình to mean 'alone', but it does not imply the person is lonely, only that they are solitary.

Examples in context

  • Một lần là đủ.
    One time is enough.
    This sentence shows how to use một to express frequency.
    Tatoeba #12056262 by dotheduyet1999, translation #5961999 by stagos
  • Đừng tin một ai.
    Trust no one.
    This sentence demonstrates using một in a negative context meaning 'no one'.
    Tatoeba #9016792 by dotheduyet1999, translation #2091089 by CK
  • Tôi muốn một cái.
    I want one.
    This sentence illustrates how to use một to express wanting a single item.
    Tatoeba #13634543 by leucammieuvu, translation #3821763 by CK
  • một cuốn sách
    One book
  • Tôi muốn một ly cà phê, làm ơn.
    I would like one coffee, please.
  • Cho tôi một tấm vé vào viện bảo tàng được không?
    Can I have one ticket to the museum?
  • 190 more sentences on Tatoeba

Example conversation

Hương and Minh are ordering drinks at a cafe.

  1. Hương

    Anh muốn uống gì, Minh?
    What do you want to drink, Minh?
  2. Minh

    Cho tôi một ly cà phê.
    Give me one cup of coffee.
  3. Hương

    Tôi cũng sẽ lấy một ly.
    I will also take one cup.
  4. Minh

    Được rồi, chúng ta cùng gọi nhé.
    Alright, let's order together.

Sources

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Sarah Hayley
Sarah HayleyHelp make this guide better. Spot a mistake, know another way to say it, or have an example from real life? Share it below.
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