"half cousin" meaning in English

{
  "forms": [
    {
      "form": "half cousins",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "half cousin (plural half cousins)",
      "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": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Family members",
          "orig": "en:Family members",
          "parents": [
            "Family",
            "People",
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "The son or daughter of one's half-uncle or half-aunt. A relative with one common grandparent."
      ],
      "id": "en-half_cousin-en-noun-vKBncku5",
      "links": [
        [
          "son",
          "son"
        ],
        [
          "daughter",
          "daughter"
        ],
        [
          "half-uncle",
          "half-uncle"
        ],
        [
          "half-aunt",
          "half-aunt"
        ]
      ]
    }
  ],
  "word": "half cousin"
}

{
  "forms": [
    {
      "form": "half cousins",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "half cousin (plural half cousins)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Family members"
      ],
      "glosses": [
        "The son or daughter of one's half-uncle or half-aunt. A relative with one common grandparent."
      ],
      "links": [
        [
          "son",
          "son"
        ],
        [
          "daughter",
          "daughter"
        ],
        [
          "half-uncle",
          "half-uncle"
        ],
        [
          "half-aunt",
          "half-aunt"
        ]
      ]
    }
  ],
  "word": "half cousin"
}