Small wordsสิ (si) in Thai: what it means and how to use it
สิsì is the urging particle at the end of a sentence: “go on!”, “come on!”, “of course!”.
particle for urging or insisting: go on!, of course! particle
- sì low
- Low: flat and lower than your normal voice, dropping a little at the end.
How to use it
สิsì at the end pushes a little: an invitation becomes "go on!", an answer becomes "of course!". It sounds friendly between people who know each other, but bossy said to a stranger in a request. You'll also see it written ซิsí, and young people say ดิdì: ไปดิbpai dì, go on then! It's short; the long สี่sìi is four.
Don't mix it up
-
สี่sìi
four
The same low tone with a long vowel: four.
Other spellings you'll see
There's no single official way to write Thai in English letters. We mark the tone of every syllable; online you'll also find:
- di
- zi
More small words in Thai
All small words
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Written by the Learn Thai For Free team
Audio: AI voices, quality-checked for tones