There are 2 main definitions of nana in English:

nana1

Line breaks: nana
Pronunciation: /ˈnɑːnə/

Entry from British & World English dictionary

noun

British informal
A silly person; a fool (often as a general term of abuse): I was made to look a right nana

Origin

1960s: perhaps a shortening of banana.

Definition of nana in:

There are 2 main definitions of nana in English:

nana2

Syllabification: nan·a
Pronunciation: /ˈnanə
 
/

noun

informal
One’s grandmother.
More example sentences
  • ‘I'd like to dedicate this to my nanna,’ he said after extending his career record to 21 wins.
  • My nanna and granddad are in their early 50s, and they don't wear old peoples' clothes.
  • My nanna brought me and my sister up and she always taught us that what you achieve in life comes through hard work.

Origin

mid 19th century: child's pronunciation of nanny or gran.

Definition of nana in: