ai1
interjection or grunt of agreement or recognition (e.g. yes, it's me!); to sigh

ai4
alas; oh dear

strokes 10
radical
strokes after radical 7
唉唉 唉唉 ai1 ai1
(onom.) sighing voice; crying sound

唉姐 唉姐 ai1 jie3
granny (dialect)

唉声叹气 唉聲嘆氣 ai1 sheng1 tan4 qi4
sighing voice, wailing breath (idiom); to heave deep sighs; to sigh in despair