gran·ny /ˈgræni/
  祖母;外祖母;老婆婆
  Gran·ny n. A grandmother; a grandam; familiarly, an old woman.
  Granny's bend, or Granny's knot Naut., a kind of insecure knot or hitch; a reef knot crossed the wrong way.
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  granny
       n 1: the mother of your father or mother [syn: grandma, grandmother,
             grannie, gran]
       2: an old woman
       3: a reef knot crossed the wrong way and therefore insecure
          [syn: granny knot]