ไหน nǎi
which (after a noun or counting word); where question word
- nǎi rising
- Rising: start low, dip, then rise to the top, like a doubtful “Really?”
After a verb it asks 'where'; after a noun it asks 'which': คนไหนkon nǎi, which person?
Taught in Unit 2 · Lesson 2: Where are you from? of the free course.
Practise it freeHow to use it
ไหนnǎi goes after the thing you're asking about: คนไหนkon nǎi (which person?), อันไหนan nǎi (which one?), สีไหนsǐi nǎi (which colour?).
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:
- nay
More small words in Thai
All small wordsLearn this word in Unit 2, free
Unit 2 · Nice to meet you · Where are you from? Short lessons with audio for every word, speaking practice and spaced review. No sign-up needed.
Written by the Learn Thai For Free team
Audio: AI voices, quality-checked for tones