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Noun: great grandson
  1. A son of your grandson or granddaughter
    "The great grandson carried on the family business"
Noun: great-grandson  ,greyt'gran,sún
  1. A male great-grandchild; the son of one's grandchild
    "The great-grandson proudly wore his great-grandfather's war medals"

Derived forms: great-grandsons

Type of: great grandchild

Encyclopedia: Great-grandson