Answer: ciaos

AnswerCrossword Clue
CIAOSPietro's ta-tas
CIAOSFarewells in Florence
CIAOSTa-tas
CIAOSBye-byes in Bologna
CIAOSInformal "byes"
CIAOSHellos and goodbyes, Italian-style
CIAOSOverseas farewells
CIAOSBye words?
CIAOSBye lines?
CIAOSBreezy good-byes
CIAOSInformal goodbyes
CIAOSSlangy greetings
CIAOSGreetings in Genoa, to Americans
CIAOSParting words
CIAOSInformal byes
CIAOSWords of parting
CIAOSTurin ta-tas