Thing is an English equivalent of 'cosa'. The Italian word is a feminine noun whose definite article is 'la' ['the'], and whose indefinite article is 'una'['a, one']. It's pronounced 'KOH-zah'.
"What? You all!" is an English equivalent of the Italian phrase Che cosa? Voi! The interrogative, feminine singular noun, and second person informal plural pronoun also translate into English as "What? You!" since colloquially, conversationally, informally, locally voi assumes the singular form "you" to show happy, respectful admiration. The pronunciation will be "key KO-sa voy" in Italian.
"What" in English is Che?, Che cosa? or Cosa? in Italian.
Che cosa
Checca in Italian means "gay (homosexual)" in English.
"What was that?" in English is Che cosa era? in Italian.
"What is...?" in English is Cos'è...? in Italian.
Non so che cosa fare in Italian means "I don't know what to do" in English.
Che cosa hai fatto?
Ke koza, correctly written Che cosa? in Italian, is "What"? in English.
"che cosa lo rende felice" (http://babelfish.yahoo.com/)
literally Cosa pensi che stai facendo?
Cosa succede? is an Italian equivalent of the English phrase "What is going on?" The interrogative in the third person singular of the present indicative also may be translated into English as "What's happening?" The pronunciation will be "KO-sa soot-TCHEH-dey" in Italian.
Che in Italian means "that" in English.