Arabic language Like any other languages has special words or terms to say (hello). In this Article i will try to focus on some common phrases to greeting in Arabic.
1- أهلا -Ahlan
You can Say it for friends , Family , neighbors- its informal (i prefer not in work)
You Can Answer by the same word أهلا -Ahlan
2-Ahlen Wa Sahlan أهل و سهلا