How to Say “Congratulations” in Thai
ยินดีด้วย
yin dii dûay
Congratulations
ค่ะ and ครับ are polite particles — they depend on the speaker's gender, not the listener's.
Word by word
When to use it
Used to congratulate someone on a promotion, graduation, new job, wedding, or any achievement. It literally means "share in the joy" — Thais often add มากเลย (mâak-ləəy) to make it warmer.
Why you've seen it spelled differently
You may have seen ยินดีด้วย written as: yin dee duay, yin di duay, yindee duai.
There is no single standard for writing Thai in the Roman alphabet — phrasebooks, road signs, and tourist guides each follow a different system, and many just invent their own spellings. The romanization on this page uses a consistent IPA-based system that marks all five tones and distinguishes short from long vowels. The same word always gets the same spelling. Paste any Thai to see it romanized →
Related phrases
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