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How to say “good luck” in Thai

The short answer

Good luck in Thai is โชคดีchôok-dii: โชคchôok means luck and ดีdii means good. Say โชคดีนะchôok-dii ná, with ครับkráp or คะká if you're being polite. Thais also use it as a warm goodbye when someone leaves on a trip or starts something new. To cheer someone on before an exam or interview, friends say สู้ๆsûu-sûu, "you can do it!"

“Good luck” in Thai

Tap a Thai word for its meaning

Men say

โชคดี chôok-diiครับ kráp

Women say

โชคดี chôok-diiค่ะ kâ
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Other spellings you'll see

There's no single official way to write Thai in English letters, so you'll see โชคดีchôok-dii spelled many ways. We write it with the tone of every syllable marked; online you'll also find:

  • chok dee
  • chok di
  • chok dee na
  • chohk dee
  • chok dee krap
  • chok dee ka
  • su su
  • soo soo

Other ways to say “good luck”

  • โชคดี chôok-diiนะ náครับ kráp Men
    โชคดี chôok-diiนะ náคะ ká Women

    good luck! take care!

    The everyday send-off, and a warm goodbye.

  • ขอให้ kǎw-hâiโชคดี chôok-diiครับ kráp Men
    ขอให้ kǎw-hâiโชคดี chôok-diiค่ะ kâ Women

    I wish you good luck

    A little more formal: cards, speeches, farewells.

  • สู้ๆ sûu-sûu

    you can do it! go for it!

    Literally 'fight, fight': the Thai cheer before exams, interviews and races.

  • ขอให้ kǎw-hâiสอบ sàwpผ่าน pàanครับ kráp Men
    ขอให้ kǎw-hâiสอบ sàwpผ่าน pàanค่ะ kâ Women

    good luck in your exam (may you pass)

    สอบsàwp is an exam, ผ่านpàan is to pass.

  • ขอให้ kǎw-hâiราบรื่น râap-rûuenครับ kráp Men
    ขอให้ kǎw-hâiราบรื่น râap-rûuenค่ะ kâ Women

    may everything go smoothly

    For a trip, a project or a new job.

  • เป็น bpenกำลังใจ gam-lang-jaiให้ hâiนะ ná

    I'm rooting for you

    Literally 'I'll be your encouragement': warm support in hard times.

  • เฮงๆ heng-heng

    lucky, lucky! (Chinese-Thai)

    From Teochew; for business, gambling and the lottery.

  • โชค chôokไม่ mâiดี dii

    bad luck, unlucky

    The opposite; the slangy version is ซวยsuay.

How to reply

  • ขอบคุณ kàwp-kunครับ kráp Men
    ขอบคุณ kàwp-kunค่ะ kâ Women

    thank you

  • โชคดี chôok-diiเหมือน mǔeanกัน gan

    good luck to you too

  • จะ jàพยายาม pá-yaa-yaam

    I'll do my best

    พยายามpá-yaa-yaam means to try hard.

Example sentences

  • ขอให้ kǎw-hâiโชคดี chôok-diiกับ gàpงาน ngaanใหม่ màiครับ kráp Men
    ขอให้ kǎw-hâiโชคดี chôok-diiกับ gàpงาน ngaanใหม่ màiค่ะ kâ Women

    Good luck with the new job.

  • สู้ๆ sûu-sûuนะ ná

    You've got this!

  • วันนี้ wan-níiโชคดี chôok-diiจัง jang

    I'm so lucky today!

  • ถูก tùukหวย hǔayเหรอ rǒe

    Did you win the lottery?

Chok dee: a wish and an adjective

โชคchôok means luck or fortune and ดีdii means good. As a wish, โชคดีนะchôok-dii ná is "good luck!". As an adjective it means "lucky": คุณโชคดีมากkun chôok-dii mâak, "you're very lucky", and วันนี้โชคดีจังwan-níi chôok-dii jang, "I'm so lucky today".

A goodbye as well as a wish

Thais often part with โชคดีนะchôok-dii ná, especially when someone is going away for a while: a friend moving cities, a colleague leaving the company, a traveller heading home. It means "good luck", "take care" and "all the best" at once, and it's far warmer than the textbook goodbye ลาก่อนlaa-gàwn. Add เดินทางปลอดภัยนะdoen-taang bplàwt-pai ná ("safe travels") at the airport.

Cheering someone on: soo soo

Before an exam, a job interview, a big match or a tough day, Thai friends don't say โชคดีchôok-dii so much as สู้ๆsûu-sûu: "fight, fight!", often with a raised fist. It's the Thai "you can do it" and you'll hear it everywhere, from students to marathon crowds. When a friend is going through something hard, เป็นกำลังใจให้นะbpen gam-lang-jai hâi ná ("I'm rooting for you") is the kind thing to text.

Luck in Thai life

Luck is taken seriously in Thailand. Nine is the luckiest number, partly because เก้าgâao (nine) sounds like ก้าวgâao (to step forward), so people pay extra for phone numbers and number plates full of nines. Weddings, house moves and business openings are timed for auspicious days. The government lottery is usually drawn on the 1st and 16th of the month, and ถูกหวยtùuk hǔay ("to win the lottery") is everyone's dream. Thai-Chinese families add เฮงๆheng-heng, "lucky, lucky!", to New Year and business wishes.

Pronunciation

Chôok falls (start high, drop), with a long "oo" and a k you don't release; dii is level. Spellings like chok dee and chohk dee are the same phrase. สู้ๆsûu-sûu falls too, twice, with a long "oo".

Good luck in Thai: questions people ask

How do you say good luck in Thai?

โชคดีchôok-dii, usually โชคดีนะchôok-dii ná. To encourage someone before a challenge, friends say สู้ๆsûu-sûu, 'you can do it!'

What does chok dee mean?

โชคดีchôok-dii means 'good luck' as a wish and 'lucky' as an adjective. It's also a common, warm way to say goodbye.

How do you say good luck on your exam in Thai?

ขอให้สอบผ่านนะkǎw-hâi sàwp pàan ná ('may you pass the exam') or simply สู้ๆนะsûu-sûu ná.

What does su su mean in Thai?

สู้ๆsûu-sûu literally means 'fight, fight'. It's the Thai way to say 'go for it!' or 'you can do it!', and it's said to anyone facing a challenge.

Do Thais say chok dee when saying goodbye?

Yes. โชคดีนะchôok-dii ná is a common farewell, especially when someone is going away for a while or starting something new.

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Written by the Learn Thai For Free team
Audio: AI voices, quality-checked for tones