Definition of aunties:
(n) :
(Asia, Africa, Australia, New Zealand) Term of familiarity or respect for a middle-aged or elderly woman.
(n) :
(Hong Kong) Female domestic helper.
(n) :
(LGBTQ, slang, US) An elderly gay man.
(v) :
To be or behave like the aunt of.
(n) :
(UK, endearing) The BBC.
(n) :
(Australia, endearing) The ABC (Australian Broadcasting Commission).