A grandmother.
I'm going to be a granny.
An elderly woman.
There are too many grannies around here getting in the way.
(knots) A granny knot.
(farming) An older ewe that may lure a lamb away from its mother.
To be a grandmother.
To act like a stereotypical grandmother; to fuss.
Typically or stereotypically old-fashioned, especially in clothing and accessories worn by or associated with elderly women.
granny dress; granny glasses