唉 (w)

(āi) interjection or grunt of agreement or recognition (e.g. yes, it's me!); to sigh

唉 (w)

(ài) alas; oh dear

唉唉 (w)

(āiāi) onomat. sighing voice; crying sound

唉姐 (w)

(āijiě) granny (dialect)

唉声叹气 (w)

(āishēngtànqì) sighing voice, wailing breath (idiom); to heave deep sighs; to sigh in despair