Kuro is a Japanese word. The English translation is "black".
Possibly "Black Blossom" Kuro-black Saki-Blossom
黒火 Kuro-hi
Kuro-kun is a casual way of referring to a person named Kuro, or somone who has the nickname Kuro (Black). It is less formal than using Kuro-san, and is used for men.
That is not in english...
"Привет" means "hello" in English. It is a common greeting used in Russian.
Black Moon
The word for 'hi' in Italian is 'ciao' and is commonly used in English too. In Italian 'ciao' can mean 'hi' and 'bye.
kuro to shiro
Kuro Kaze
"Hi cosa" is not a phrase or wording in English. -Gibberish or foreign.
hi in japanese means yes but hi in english means hello in a informal way ;D