How to say hello in arabic ?
When you want to talk to arabic person, you should say: "hello in arabic ", the spell of hello in arabic is very easy and common.
Hello my Friend= Marhaban bek ya sadeeki.
but if you want to say hello in islamic speech, you should say " assa-lamo aleekom, which means: i am provide the peace to you, that is: don't worry, i will not harm you.

so, hello in arabic = Marhaban, salam, or assa-lamo aleekom.
hi in arabic = Marhaban, salam, or assa-lamo aleekom.