So, according to the Oxford Dictionary (English Dictionary),
Nana is defined as one's grandmother, and
Nanna redirects to
According to Dictionary.com (American Dictionary),
Nana is one's grandmother, and
Nanna is "The wife of Balder" (Scandinavian Mythology) or "The Sumerian god of the moon: the counterpart of the Akkadian god Sin".
A question was raised at this. I am Australian and have always spelt
Nana. My brother, however, spells it as
Nanna. The spell checker in Firefox is currently detecting
Nanna to be correct to
My question is, in Australian/British English, how is
Nana spelt? With one
n or two?