This is the 6426th most frequent French word.
ha
An exclamation expressing surprise, joy, or mockery.
In this sentence, 'ha' is used as an interjection, expressing surprise upon encountering someone unexpectedly.
Ha, je ne m'attendais pas à te voir ici.
Ha, I did not expect to see you here.
Here, 'ha' functions as an interjection, conveying realization or acknowledgment of a change in circumstances.
Ha, donc tu as changé d'avis finalement.
Ha, so you changed your mind after all.
In this context, 'ha' is a form of laughter or an expression of amusement in response to something funny.