Nghĩa

1. still, nevertheless, anyway
2. after all, despite what was expected
3. yes, surely; implies a positive contradiction, used to contradict a negative.
4. In positive statements, a modal particle indicating certainty or emphasis, implying that the speaker considers his statement to be obvious.
5. In questions, a modal particle indicating uncertainty or sometimes worry, implying that the speaker hopes to be confirmed or reassured; may also be postpositioned as a tag question.