Nanny is a synonym of nan.
Nanny is a related term of nan.
As nouns the difference between nan and nanny
is that
nan is affectionate name for a grandmother while
nanny is a child's nurse.
As proper nouns the difference between nan and nanny
is that
nan is {{given name|female|diminutive=Ann}} and Nancy while
Nanny is {{given name|female|diminutive=Ann}} or Anne.
As an initialism NAN
is
NMDA
Antagonist
Neurotoxicity.
As a verb nanny is
to treat like a nanny's charges; to coddle.