"demi-frère" meaning in French

{
  "etymology_templates": [
    {
      "args": {
        "1": "fr",
        "2": "demi-",
        "3": "frère"
      },
      "expansion": "demi- + frère",
      "name": "af"
    }
  ],
  "etymology_text": "From demi- + frère.",
  "forms": [
    {
      "form": "demi-frères",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "demi-sœur",
      "tags": [
        "feminine"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m",
        "f": "demi-sœur"
      },
      "expansion": "demi-frère m (plural demi-frères, feminine demi-sœur)",
      "name": "fr-noun"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "French entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "French terms prefixed with demi-",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "fr",
          "name": "Family",
          "orig": "fr:Family",
          "parents": [
            "People",
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "fr",
          "name": "Male",
          "orig": "fr:Male",
          "parents": [
            "Gender",
            "Biology",
            "Psychology",
            "Sociology",
            "Sciences",
            "Social sciences",
            "All topics",
            "Society",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "fr",
          "name": "Male family members",
          "orig": "fr: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"
        }
      ],
      "glosses": [
        "half-brother"
      ],
      "id": "en-demi-frère-fr-noun-RcpdDot2",
      "links": [
        [
          "half-brother",
          "half-brother"
        ]
      ],
      "related": [
        {
          "word": "quasi-frère"
        },
        {
          "word": "beau-frère"
        },
        {
          "word": "demi-sœur"
        },
        {
          "word": "frère"
        }
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/də.mi.fʁɛʁ/"
    },
    {
      "audio": "LL-Q150 (fra)-Fhala.K-demi-frère.wav",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/d/de/LL-Q150_%28fra%29-Fhala.K-demi-fr%C3%A8re.wav/LL-Q150_%28fra%29-Fhala.K-demi-fr%C3%A8re.wav.mp3",
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      "text": "Audio"
    }
  ],
  "word": "demi-frère"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "fr",
        "2": "demi-",
        "3": "frère"
      },
      "expansion": "demi- + frère",
      "name": "af"
    }
  ],
  "etymology_text": "From demi- + frère.",
  "forms": [
    {
      "form": "demi-frères",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "demi-sœur",
      "tags": [
        "feminine"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m",
        "f": "demi-sœur"
      },
      "expansion": "demi-frère m (plural demi-frères, feminine demi-sœur)",
      "name": "fr-noun"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "noun",
  "related": [
    {
      "word": "quasi-frère"
    },
    {
      "word": "beau-frère"
    },
    {
      "word": "demi-sœur"
    },
    {
      "word": "frère"
    }
  ],
  "senses": [
    {
      "categories": [
        "French 3-syllable words",
        "French countable nouns",
        "French entries with incorrect language header",
        "French lemmas",
        "French masculine nouns",
        "French multiword terms",
        "French nouns",
        "French terms prefixed with demi-",
        "French terms with IPA pronunciation",
        "French terms with audio links",
        "fr:Family",
        "fr:Male",
        "fr:Male family members"
      ],
      "glosses": [
        "half-brother"
      ],
      "links": [
        [
          "half-brother",
          "half-brother"
        ]
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/də.mi.fʁɛʁ/"
    },
    {
      "audio": "LL-Q150 (fra)-Fhala.K-demi-frère.wav",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/d/de/LL-Q150_%28fra%29-Fhala.K-demi-fr%C3%A8re.wav/LL-Q150_%28fra%29-Fhala.K-demi-fr%C3%A8re.wav.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/d/de/LL-Q150_%28fra%29-Fhala.K-demi-fr%C3%A8re.wav/LL-Q150_%28fra%29-Fhala.K-demi-fr%C3%A8re.wav.ogg",
      "text": "Audio"
    }
  ],
  "word": "demi-frère"
}