It means "no", but with a childish accent. It's the word "Non" but pronounced like the end of the French word "Maintenant".
In Brazilian Portuguese, "nan" is not a recognized term or word. It is not a word in Portuguese or commonly used in Brazilian culture.
I am fairly certain that you mean "non" which is francais for "no"
Nan
fan nan
my nan
Vennsetyèm, 27th. Nan, of. Mwa Me, May.
Could it be.... nan
Bonjour Mamie et Pépé
the correct pronunciation of the word uninamously is YOU-NA-NI-MOUSLY.
nan mo nai
Easy! Nan
Yes it is. It is a shortened form of nanny or grandmother.