Which Vietnamese word means both yes and no?

Only people with a rich Vietnamese vocabulary can solve this puzzle.

The riddle is as follows: "Which Vietnamese word means both yes and no?". This is a seemingly simple riddle, but not everyone can find the correct answer.

If you find the answer to the above puzzle, scroll down to the comments to record and see how many people think the same as you.

Libra

Source: https://vtcnews.vn/tu-tieng-viet-nao-vua-co-nghia-la-co-vua-co-nghia-la-khong-ar963305.html