"¡Buenos días!"
Hola, don/donna _________
To greet someone in the morning you say 'Good morning.'
In Cuban Spanish, you can say "buenos días" to greet someone in the morning.
In Colombian Spanish, you can say "buenos días" to greet someone in the morning.
Guten Morgen (meaning good morning)
In Blackfoot, you can say "morning" or "akohp" to greet someone in the morning.
You can say "Mangwanani" in Shona to greet someone in the morning.
In Quebec, you can say "bonjour" to greet someone in the morning.
geia sas, is both formal & plural, 'yah-sas'
You could say, "Buenos Dias!"
The difference between saying "good morning" and using the abbreviation "rdl" to greet someone is that "good morning" is a traditional and polite way to greet someone in the morning, while "rdl" is not a commonly recognized or understood greeting, and may cause confusion or be seen as informal or unprofessional.
In Isneg, you can say "Naimbag a bigat" to greet someone in the morning.