hei hei

== Finnish == === Etymology === Reduplication of hei. Compare moi moi. === Pronunciation === IPA(key): /ˈhei̯ ˈhei̯/, [ˈhe̞i̯ ˈhe̞i̯] IPA(key): [ˈhé̞i̯ ˈhè̞i̯] (first word with a higher or rising pitch, second with a lower or falling pitch) === Interjection === hei hei (informal) bye-bye