资料来源 : pyDict

祖母;老奶奶

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Grandmother \Grand"moth"er\, n.
   The mother of one's father or mother.

资料来源 : WordNet®

grandmother
     n : the mother of your father or mother [syn: {grandma}, {granny},
          {grannie}, {gran}]