hello in Arabic

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.

welcome in Arabic

How to say welcome in arabic ?
Welcome is important word used in many sentences.
In short, welcome in arabic, spell as one of the following : marhaban, ahlan wa sahlan, and sharaftana.
as example: Ahmad! you are welcome in USA, in arabic said as : marhaban bek ya Ahmed fee Amreeka.

also you can say: Welcome my friend in my home, as : " ahlan wa sahlan bek ya sadeeki fee baitee.
Welcome=ahlan wa sahlan
my friend=ya sadeeki
in=fee
my home=baitee