欸

ǎi

1. (Tw) (literary) to rebuke loudly
2. (Tw) (literary) to sigh
3. used in 欸乃[ai3 nai3]

āi

1. (indicating response)
2. (sadly sighing)
3. also pr. [ei4]

ēi

1. hey (used to draw attention)

éi

1. eh; huh (used to express surprise)

ěi

1. hmm (used to express disapproval)

èi

1. yes (used to express agreement)