chao bedeutet auf Englisch

bye▼(short for goodbye, see also: goodbye)
interjection
[UK: baɪ] [US: baɪ]I have to go now. Bye! = Ya me tengo que ir. ¡Chao!

ciao▼(transliteration of the Italian greeting or farewell)
interjection
[UK: ʧaʊ] [US: ʧaʊ]