Ciao

[Luis Fok]

Used as a greeting at meeting or parting.

[Tracie Lynn]

It [means] both [hello] and [goodbye]

[Michiko]

[CIA] OUT
[Central] Intelligence [Agency] Out
a common way for acknowledging in some form of conversation that one is CIA

[Kai]

[The Italian] term for [Hi] or [Bye]

[Mark Zuckerberg]

italian [greeting] word, either [hello] or [goodbye]

[Tariq Zaki]

originally italian for hello or [goodbye] now common in [southwest] US and [Mexico] for goodbye.

[Zipporah Schumaker]

an [italian] word meaning [goodbye] or [see you later]

[Magaret]

An attitude used in dating life, when the person you are talking to on a dating app might seem interesting and likeable at first, but clearly lacks any form of [human decency] or respect, e.g. by repeatedly canceling plans for a date at the very [last minute], and therefor is not worth any of your time and effort. [Fun fact]: the word ciao in Italian means both hello and goodbye.

[Becky]

What [Italians] say all day long while riding around on [scooters].
(def. according to [Eddie Izzard])

[Sommer]

[Ciao] was originally an Italian word meaning hello or goodbye, but culturally [diffused] into various European nations with [Romance languages].

In the United States, it is commonly used by Spanish-speakers and French-speakers, in addition to Italian-speakers.

When [ciao] is used by Americans, instead of looking sophisticated, they look like retards. So, if youre American.... just dont say it.