ei1
hey (to call sb)

ei2
hey (to express surprise)

ei3
hey (to express disagreement)

ei4
hey (to express agreement)

xi1
sigh (to express regret)

strokes 14
radical
strokes after radical 7
诶笑 誒笑 ei1 xiao4
to laugh loudly; guffaw

诶诒 誒詒 ei1 yi2
to rave; to babble in one's sleep