plural of grandmaster

(informal) Grandmother. / (informal) Synonym of granddaddy (“something that is the greatest or most significant of its kind”)

A grandmaster, in some field, whose skills or accomplishments exceed those of other grandmasters.

plural of grandmammy

plural of grandmama

Alternative spelling of grandmamma

The state or quality of being a grandmother.

plural of grandmaw

(US, dialect) grandmother

(archaic) The mother of one’s own mother.