Grandparent
There are a number of nicknames for a person's grandparents. These include 'grandpa', 'grandpapa', 'papa' and 'pawpa' for a grandfather. Nicknames for grandmothers include 'grandma', 'grammy', 'granny', and 'nanna'. There are also many unique nicknames. An example is American actress Goldie Hawn who did not want to be called 'grandma', instead came up with the nickname 'Glamma.'