How to Say “I Know” in Thai

ฉันรู้
chan ru
In Thai, "I know" is expressed as ฉันรู้ (chan ru).
ฉันรู้ is used to assert that the speaker possesses a specific answer or piece of information. It is important to distinguish between knowing facts and knowing people or places.
Meaning: assertion that speaker has answer or idea (phrase)

Which one should you use?

While รู้ is for facts, รู้จัก is used specifically for knowing a person or a place. Additionally, do not confuse ฉันรู้ with เข้าใจ, which means "to understand."

Is there a formal and an informal way to say it?

The choice of the word for "I" changes based on the speaker's gender and social context. For females, especially younger women or those speaking to elders, หนูรู้ (nu ru) is a common informal and polite way to say "I know."

How does it change in a sentence?

The phrase รู้แล้ว means "already know," and it is a very common way to express that you are already aware of a certain piece of information.

How do you pronounce it?

chan ru

Did you know?

  • The term หนู (nu), used as 'I' in หนูรู้, literally translates to 'mouse'. Using this small animal as a first-person pronoun is a common way for women to sound cute, polite, or endearing.
  • In very formal or royal contexts, the verb for 'know' changes entirely to words like ทรงทราบ (song sap), which are far removed from the everyday รู้ (ru) used in daily life.
  • When expressing that you know a piece of information, adding the particle นะ (na) to the end, such as in รู้แล้วนะ (ru laeo na), can soften the tone and make the assertion sound much more friendly.

Examples in context

  • ใช่ฉันรู้
    Yes, I know it.
    This sentence shows how to confirm that you know something using ฉันรู้.
    Tatoeba #8679137 by pastelite, translation #433589 by CK
  • ฉันรู้จักเธอ
    I know her.
    This sentence demonstrates the distinction between knowing a fact and knowing a person using ฉันรู้.
    Tatoeba #8675731 by pastelite, translation #424848 by CM
  • ฉันรู้สิ่งนี้
    I know this.
    This sentence illustrates using ฉันรู้ to express knowledge of a specific thing.
    Tatoeba #8692087 by pastelite, translation #2245929 by CK
  • รู้แล้ว
    I know.
  • 22 more sentences on Tatoeba

Example conversation

Two colleagues are discussing a meeting time.

  1. กนกวรรณ Kanokwan

    พรุ่งนี้มีประชุมตอนสิบโมงนะ
    phrung-ni mi pra-chum ton sip mong na
    There is a meeting tomorrow at ten o'clock.
  2. ชลสิทธิ์ Cholasit

    ฉันรู้แล้ว ขอบคุณที่บอก
    chan ru laew khop khun thi bok
    I know already. Thanks for telling me.
  3. กนกวรรณ Kanokwan

    คุณเตรียมเอกสารหรือยัง
    khun triam ek-ka-san reu yang
    Have you prepared the documents yet?
  4. ชลสิทธิ์ Cholasit

    ฉันรู้ว่าต้องเตรียมอะไรบ้าง
    chan ru wa tong triam a-rai bang
    I know what needs to be prepared.

Sources

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Kathleen Louise
Kathleen LouiseHelp 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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