"co-grandfather" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "co",
        "3": "grandfather"
      },
      "expansion": "co- + grandfather",
      "name": "prefix"
    }
  ],
  "etymology_text": "* co- + grandfather",
  "forms": [
    {
      "form": "co-grandfathers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "co-grandfather (plural co-grandfathers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Male family members",
          "orig": "en:Male family members",
          "parents": [
            "Family members",
            "Male people",
            "Family",
            "Male",
            "People",
            "Gender",
            "Human",
            "Biology",
            "Psychology",
            "Sociology",
            "All topics",
            "Sciences",
            "Social sciences",
            "Fundamental",
            "Society"
          ],
          "source": "w"
        }
      ],
      "coordinate_terms": [
        {
          "word": "co-grandmother"
        },
        {
          "word": "co-grandparents"
        }
      ],
      "examples": [
        {
          "ref": "1946 September 9, “The Milkman”, in Time, archived from the original on 2011-02-19",
          "text": "The milkman was Edward Kenelm Digby, 52, eleventh Baron Digby, World War I colonel in the Coldstream Guards, World War II inspector of infantry-training establishments, co-grandfather (with Winston Churchill) of Randolph Churchill's small son, Winston Churchill II.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "the father of one's son- or daughter-in-law, as common grandfather of their children; the relationship between men who have grandchildren in common; maternal grandfather vis-à-vis paternal grandfather."
      ],
      "id": "en-co-grandfather-en-noun-4W8CBiFu",
      "related": [
        {
          "word": "co-grandfather-in-law"
        },
        {
          "word": "co-in-law"
        },
        {
          "word": "co-uncle"
        }
      ],
      "synonyms": [
        {
          "english": "relative to the children rather than the grandchildren",
          "word": "co-father-in-law"
        }
      ]
    }
  ],
  "word": "co-grandfather"
}

{
  "coordinate_terms": [
    {
      "word": "co-grandmother"
    },
    {
      "word": "co-grandparents"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "co",
        "3": "grandfather"
      },
      "expansion": "co- + grandfather",
      "name": "prefix"
    }
  ],
  "etymology_text": "* co- + grandfather",
  "forms": [
    {
      "form": "co-grandfathers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "co-grandfather (plural co-grandfathers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "co-grandfather-in-law"
    },
    {
      "word": "co-in-law"
    },
    {
      "word": "co-uncle"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with topic categories using raw markup",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys",
        "English terms with quotations",
        "en:Male family members"
      ],
      "examples": [
        {
          "ref": "1946 September 9, “The Milkman”, in Time, archived from the original on 2011-02-19",
          "text": "The milkman was Edward Kenelm Digby, 52, eleventh Baron Digby, World War I colonel in the Coldstream Guards, World War II inspector of infantry-training establishments, co-grandfather (with Winston Churchill) of Randolph Churchill's small son, Winston Churchill II.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "the father of one's son- or daughter-in-law, as common grandfather of their children; the relationship between men who have grandchildren in common; maternal grandfather vis-à-vis paternal grandfather."
      ]
    }
  ],
  "synonyms": [
    {
      "english": "relative to the children rather than the grandchildren",
      "word": "co-father-in-law"
    }
  ],
  "word": "co-grandfather"
}