Definitions
American Heritage® Dictionary of the English Language, Fourth Edition
- interj. Used to express greeting or farewell.
Wiktionary
WordNet 3.0
- n. an acknowledgment that can be used to say hello or goodbye (aloha is Hawaiian and ciao is Italian)
Etymologies
- From Italian ciao ("hello, goodbye"), from Venetian ciao ("hello, goodbye, your (humble) servant"), from Venetian s-ciao / s-ciavo ("servant, slave"), from Medieval Latin sclavus ("Slav, slave"), related also to Italian schiavo, English Slav, slave and Old Venetian S-ciavón ("Slav"), from Latin Sclavonia ("Slavonia"). (Wiktionary)
- Italian, from dialectal ciau, alteration of Italian (sono vostro) schiavo, (I am your) servant, from Medieval Latin sclavus, slave, servant; see slave. (American Heritage® Dictionary of the English Language, Fourth Edition)
Examples
“I suppose I could say "ciao" - which does have a certain etymological background of coming from the Italian schiavo, which means "I am your slave," and I don't much want to say that either...”
“Shopping is a bit weird, since I was taken from the Bing site and dumped at somewhere called ciao!”
“You smile and wave when you spot each other, yellow maps and cameras in hand; maybe you exchange "ciao" s.”
The Huffington Post: Lauren Quinn: A Hunger for More: Fame Festival Opening
“I remember saying "ciao" but not kissing her, not even looking at her, as though the ugliness was chasing me.”
“Although displeased, I said "ciao" to Bourdain, barked farewell to The Puppy Bowl and a handful of others.”
“The one Italian word he could spell correctly, he said, was 'ciao', because it was anagram of his surname.”
“It could be "ciao", an Italian word but maybe it's just my nationality convincing me it's "ciao".”
“I enrolled in a college two thousand miles away from home, I made dating choices based on weighty criteria such as “coolness” and “hotness,” and I took off for a semester in Italy even though I couldn’t speak a word past ciao and grazie.”
Simon & Schuster: Everything I Needed to Know About Being a Girl I Learned from Judy Blume
“Last but certainly not least, Don Vincenzo di Caravella says "ciao" to the GameSpot gang as hosting duties pass to someone of Northern European descent ...”
GameSpot's News, Screenshots, Movies, Reviews, Previews, Downloads, and Features
“He said "ciao" to everyone, and if someone didn't respond, he would keep ciao-ing till he got a ciao back.”
TravelPod.com TravelStream™ — Recent Entries at TravelPod.com
Lists
These user-created lists contain the word ‘ciao’.
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letter and email endings
serious and funny ones
kind regards, with love, cheers, lots of love, hugs and kisses, keep the faith, be well, cordially, take care, love you now and ..., word to your mother, duty calls and 65 more...
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Man likes these words
danube, schadenfreude, macabre, wanderlust, epiphany, azure, zeitgeist, cerulean, ennui, rhine, abyss, mulch and 130 more...
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Alles ganz verschieden
Listed various words that have come into my mind. Will edit them at some point - honestly.
dog-gold, shoulderlooker, mr. considering, the pigwoman, stevie is waiting, chingwybodganpwy, thelandscapeisstu..., couchsurfing, cappuccinodrinking, meat-eater, posher, mae rhaid i fi fynd and 581 more...
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hello, hello
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avawake's list
elpis, transient, anon, remeet, orerry, fitfull, benediction, infinitum, ad, ananym, halcyon, bird and 93 more...
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booknerd's Words
frenetic, elite, kiss, grip, flesh, sugar, ciao, occult, copious, antiquated, drawl, lush and 101 more...
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Skip The Light Fontastic
Fonts whose names are wacky, powerful, intriguing, whimsical, exotic and so on.
buttzilla, consolas, trebuchet, chanticleer, earthpig, dwarves, ciao, ghost town, goodfish, i still know, gorilla milkshake, immoral and 212 more...
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Foreignyms
soi-disant, je ne sais quoi, guerrilla, attaché, serviette, aubergine, beef, pork, sayonara, ciao, mot juste, bon mot and 13 more...
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speaking in tongues
schadenfreude, naïve, gnosis, sangfroid, capisce, flagrante delicto, lux, veritas, gravitas, coquette, panache, nom de plume and 73 more...
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greetings & salutations
of one word
greetings, salutations, hello, hola, 'ello, g'day, hiya, hi, 'sup, howdy, yo, bonjour and 14 more...
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Best of weirdnet
buttocks, peeler, mum, sweets, tree, auld, bowery, pynchon, horror-stricken, and, tatou, scarf and 37 more...
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simdawdler's Words
procrastination, fuffa, sgurz, philosophy, quest, zetetic, adventure, transition, freedom, hermeneutics, mirror, stochastic and 22 more...
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2007bee-r01
2007 Scripps Bee Round 1
icicle, hawthorn, bizarre, tarantula, colossus, ciao, malocclusion, demur, succorance, mien, solmizate, takt and 13 more...
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bye
good night, sweet dreams, love you, take care, good bye, see u later, catch you later, enjoy, cheers, later, bye bye, tata and 3 more...
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Vowel Rich
Scrabble List: vowel dumps
aeon, aero, agee, agio, ague, aide, akee, alee, alae, aloe, amia, amie and 67 more...
Tweets
Looking for tweets for ciao.

reesetee Ciao, sionnach. Dec 16, 2008
sionnach I find the claim that marzipan is derived from Venetian hard to believe, Roderick Conway Morris notwithstanding.
The claim for artichoke is equally dubious. The etymological dictionary online tells us that:
1531, from articiocco, Northern It. variant of It. arcicioffo, from O.Sp. alcarchofa, from Ar. al-kharshof "artichoke."
suggesting that Venice was only a way station along a longer etymological pathway.
ballot holds up as Venetian, but sequin only partially:
1617, name of a former Italian and Turkish gold coin, from Fr. sequin, from It. zecchino, from zecca "a mint," from Ar. sikkah "a minting die." Meaning "ornamental disc or spangle" is first recorded 1882, from resemblance to a gold coin.
ghetto is murky -
1611, from It. ghetto "part of a city to which Jews are restricted," various theories of its origin include: Yiddish get "deed of separation;" special use of Venetian getto "foundry" (there was one near the site of that city's ghetto in 1516); Egitto "Egypt," from L. Aegyptus (presumably in memory of the exile); or It. borghetto "small section of a town" (dim. of borgo, of Gmc. origin, see borough). Extended 1892 to crowded urban quarters of other minority groups.
lotto is traceable to the old English 'hlot'.
imbroglio to the middle French word 'brouiller'
Methinks that Roderick Conway Morris is not to be trusted. I can't be bothered to check the others. Dec 15, 2008
Telofy You can't negate implications like that. ^^
That "ciao" is "a statement acknowledging something or someone" does not necessarily mean that any statement acknowledging something or someone is a ciao. Only for bijective relations both such statements would be true, respectively, it would be a bijective relation if both statements were true.
Ciao. Dec 15, 2008
bilby Ciao reesetee. Dec 13, 2008
reesetee Never mind the Hawaiian; look at the second definition. That would mean that nearly all of our comments here on Wordie are...uh...ciaos. Dec 12, 2008
bilby Hello? Goodbye? Dec 12, 2008
kewpid I don't know why you say goodbye, I say hello. Dec 12, 2008
bilby You say goodbye, I say hello. Dec 12, 2008
vanishedone Why is WeirdNet bringing Hawaiian into this?
T.L.S.: 'English words borrowed from Venetian include artichoke, arsenal, ballot, casino, contraband, gazette, ghetto, imbroglio, gondola, lagoon, lido, lotto, marzipan, pantaloon, pistachio, quarantine, regatta, scampi, sequin and zany. “Ciao�? – a long-standing contraction of the courteous Venetian salutation “vostro schiavo�? (your humble servant) – has now become a global greeting.' Dec 12, 2008