WordWeb Online

1. [Brit] The mother of your father or mother
   - grandma, grandmother, grannie [Brit], gran, nan [Brit, informal], nanna [Brit, informal], grandmama [archaic], nana [informal], grandmamma [archaic], nanny [Brit, informal]
    
2. An old woman
    
3. A reef knot crossed the wrong way and therefore insecure
   - granny knot

Derived forms: grannies

Type of: flat knot, grandparent, old woman, reef knot [Brit, Cdn], square knot [N. Amer]

Encyclopedia: Granny, Iliko, Illarion and I