Essential Arabic greetings and salutations.

• مَرْحَبًاmarḥabanHello / Hi (general, friendly)
• أَهْلًاahlanHi / Welcome (informal, warm)
• أَهْلًا وَسَهْلًاahlan wa-sahlanWelcome (warm greeting to a guest or newcomer)
• السَّلَامُ عَلَيْكُمْas-salāmu ʿalaykumPeace be upon you (the standard formal/polite greeting)
• وَعَلَيْكُمُ السَّلَامُwa-ʿalaykumu s-salāmuAnd upon you peace (the reply to as-salāmu ʿalaykum)
• صَبَاحُ الْخَيْرِṣabāḥu l-khayriGood morning (literally: morning of goodness)
• صَبَاحُ النُّورِṣabāḥu n-nūriGood morning (the reply: morning of light)
• مَسَاءُ الْخَيْرِmasāʾu l-khayriGood evening / Good afternoon (literally: evening of goodness)
• مَسَاءُ النُّورِmasāʾu n-nūriGood evening (the reply: evening of light)
• تُصْبِحُ عَلَى خَيْرٍtuṣbiḥu ʿalā khayrGood night (said to a man; literally: may you wake to goodness)
• لَيْلَةً سَعِيدَةًlaylatan saʿīdatanGood night / Have a happy night
• مَعَ السَّلَامَةِmaʿa s-salāmatiGoodbye (literally: with safety; said to the one leaving)
• إِلَى اللِّقَاءِilā l-liqāʾiSee you / Until we meet again
• إِلَى الْغَدِilā l-ghadiSee you tomorrow (literally: until tomorrow)
• أَرَاكَ لَاحِقًاarāka lāḥiqanSee you later (said to a man)
• كَيْفَ حَالُكَ؟kayfa ḥāluka?How are you? (said to a man)
• بِخَيْرٍ، شُكْرًاbi-khayrin, shukranFine, thank you (a common reply to 'how are you?')
• تَفَضَّلْtafaḍḍalPlease / Go ahead / Here you go (said to a man; a polite welcoming word)