Hello or goodbye (4)
(Other definitions for ciao that I've seen before include "European's greeting" , "farewell" , "European greeting" , "Hi - bye" , "See you in Italy" .)
(Other definitions for aloha that I've seen before include "Hello or goodbye in Hawaii" , "Welcome to Honolulu!" , "Hawaiian "ciao"" , "Hawaiian greeting" , "Hawaiian farewell" .)