"first cousin thrice removed" meaning in English

{
  "forms": [
    {
      "form": "first cousins thrice removed",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "first cousins thrice removed",
        "head": "first cousin thrice removed"
      },
      "expansion": "first cousin thrice removed (plural first cousins thrice removed)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "great-grandchild of someone’s first cousin"
      ],
      "id": "en-first_cousin_thrice_removed-en-noun-FhbP~dAb",
      "links": [
        [
          "great-grandchild",
          "great-grandchild"
        ],
        [
          "first cousin",
          "first cousin"
        ]
      ],
      "related": [
        {
          "_dis1": "77 7 17",
          "word": "first cousin"
        },
        {
          "_dis1": "77 7 17",
          "word": "first cousin once removed"
        },
        {
          "_dis1": "77 7 17",
          "word": "first cousin twice removed"
        }
      ],
      "translations": [
        {
          "_dis1": "84 13 3",
          "code": "ru",
          "lang": "Russian",
          "roman": "trojúrodnyj vnuk",
          "sense": "first cousin’s grandson",
          "tags": [
            "masculine"
          ],
          "word": "трою́родный внук"
        }
      ]
    },
    {
      "glosses": [
        "cousin of someone’s great-grandparent"
      ],
      "id": "en-first_cousin_thrice_removed-en-noun-Fq7wI3fh",
      "links": [
        [
          "great-grandparent",
          "great-grandparent"
        ]
      ]
    },
    {
      "categories": [
        {
          "_dis": "6 6 88",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "10 14 76",
          "kind": "other",
          "name": "Entries with translation boxes",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "5 7 89",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "4 5 90",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "7 10 83",
          "kind": "other",
          "name": "Terms with Russian translations",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "8 5 86",
          "kind": "other",
          "langcode": "en",
          "name": "Family members",
          "orig": "en:Family members",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "great-grandcousin"
      ],
      "id": "en-first_cousin_thrice_removed-en-noun-R46s776k",
      "links": [
        [
          "great-grandcousin",
          "great-grandcousin"
        ]
      ]
    }
  ],
  "word": "first cousin thrice removed"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English multiword terms",
    "English nouns",
    "Entries with translation boxes",
    "Pages with 1 entry",
    "Pages with entries",
    "Terms with Russian translations",
    "en:Family members"
  ],
  "forms": [
    {
      "form": "first cousins thrice removed",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "first cousins thrice removed",
        "head": "first cousin thrice removed"
      },
      "expansion": "first cousin thrice removed (plural first cousins thrice removed)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "first cousin"
    },
    {
      "word": "first cousin once removed"
    },
    {
      "word": "first cousin twice removed"
    }
  ],
  "senses": [
    {
      "glosses": [
        "great-grandchild of someone’s first cousin"
      ],
      "links": [
        [
          "great-grandchild",
          "great-grandchild"
        ],
        [
          "first cousin",
          "first cousin"
        ]
      ]
    },
    {
      "glosses": [
        "cousin of someone’s great-grandparent"
      ],
      "links": [
        [
          "great-grandparent",
          "great-grandparent"
        ]
      ]
    },
    {
      "glosses": [
        "great-grandcousin"
      ],
      "links": [
        [
          "great-grandcousin",
          "great-grandcousin"
        ]
      ]
    }
  ],
  "translations": [
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "trojúrodnyj vnuk",
      "sense": "first cousin’s grandson",
      "tags": [
        "masculine"
      ],
      "word": "трою́родный внук"
    }
  ],
  "word": "first cousin thrice removed"
}