CIAO


Meaning of CIAO in English

interj.

Pronunciation: ' chau ̇

Function: interjection

Etymology: Italian, from Italian dialect, literally, (I am your) slave, from Medieval Latin sclavus ― more at SLAVE

Date: 1929

― used conventionally as an utterance at meeting or parting

Merriam Webster Collegiate English Dictionary.      Merriam Webster - Энциклопедический словарь английского языка.