The interjection "Hi!" is an informal greeting which is very widely used. Because of its informal nature, you would not use it in greeting, for example, a person of great authority. Nonetheless, its wide usage makes it very much part of the English language.
What constitutes "proper" will depend on your definition. Do you mean "formal", or do you mean "used by English speakers"?
boom boom -- The proper English to Romanian translation of "Hi" is "bună".
It is in some cases, like if it were to be followed with a discussion/conversation.
"Hi!" in English means Ciao! in Italian.
No. Hello is proper.
Avarekalu in Kannada means Hyacinth beans in English and Surti Papdi in Hindi.
"Hi! My name is..." in English is Ciao! Mi chiamo...! in Italian.
Kijani kibichi is the Kikuyu word for the English word hi.
The word for 'hi' in Italian is 'ciao' and is commonly used in English too. In Italian 'ciao' can mean 'hi' and 'bye.
In English, the word for a casual "hello" is written "hi."
Ciao, Sami! to a female and Ciao, Samu! to a male are Italian equivalents of the English phrase "Hi, Sam!" The choice depends upon whether the nickname abbreviates the feminine proper name Samanta ("Samantha" ) or the masculine proper name Samuele ("Samuel") in Italian. The respective pronunciations will be "tchow SA-mee" in the feminine and "tchow SA-moo" in the masculine in Italian.
In Middle English, "hi" would be most closely represented as "heil" or "hail."
English is a proper adjective.