good morning

"Sabah al-khayr" is the standard way to say "good morning" in Arabic. It literally translates to "morning of goodness." The mental image is that of wishing someone a morning filled with blessings, peace, and positive energy. This phrase is used universally across the Arab world to greet someone after sunrise. It is a polite and friendly greeting suitable for friends, colleagues, and strangers alike. The standard response is "Sabah an-nur," which means "morning of light."
In conversation
Greeting a colleague at the office
صباح الخير يا أحمد.
Good morning, Ahmed.
صباح النور، كيف حالك؟
Morning of light, how are you?
The response 'Sabah an-nur' is the most common reply to this greeting.
A quick text message to a friend
صباح الخير! هل أنت مستعد لليوم؟
Good morning! Are you ready for the day?
صباح النور، نعم أنا جاهز.
Morning of light, yes I am ready.
Using this phrase over text is just as common as saying it in person.
Examples
صباح الخير يا صديقي.
Good morning, my friend.
صباح الخير، أتمنى لك يوماً سعيداً.
Good morning, I wish you a happy day.
صباح الخير للجميع، هل بدأ الاجتماع؟
Good morning everyone, has the meeting started?