"language branch" meaning in English

{
  "forms": [
    {
      "form": "language branches",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "language branch (plural language branches)",
      "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": "Mandarin terms with redundant transliterations",
          "parents": [
            "Terms with redundant transliterations",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with German translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Mandarin translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Linguistics",
          "orig": "en:Linguistics",
          "parents": [
            "Language",
            "Social sciences",
            "Communication",
            "Sciences",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A subcategory within a language family, which groups together languages that share a common ancestor more recent than the proto-language of the language family."
      ],
      "id": "en-language_branch-en-noun-zqIcMeko",
      "links": [
        [
          "linguistics",
          "linguistics"
        ],
        [
          "language family",
          "language family"
        ],
        [
          "proto-language",
          "proto-language"
        ]
      ],
      "raw_glosses": [
        "(linguistics) A subcategory within a language family, which groups together languages that share a common ancestor more recent than the proto-language of the language family."
      ],
      "topics": [
        "human-sciences",
        "linguistics",
        "sciences"
      ],
      "translations": [
        {
          "code": "cmn",
          "lang": "Chinese Mandarin",
          "sense": "set of languages",
          "word": "語族"
        },
        {
          "code": "cmn",
          "lang": "Chinese Mandarin",
          "roman": "yǔzú",
          "sense": "set of languages",
          "word": "语族"
        },
        {
          "code": "de",
          "lang": "German",
          "sense": "set of languages",
          "tags": [
            "masculine"
          ],
          "word": "Sprachzweig"
        }
      ]
    }
  ],
  "word": "language branch"
}

{
  "forms": [
    {
      "form": "language branches",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "language branch (plural language branches)",
      "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",
        "Mandarin terms with redundant transliterations",
        "Terms with German translations",
        "Terms with Mandarin translations",
        "en:Linguistics"
      ],
      "glosses": [
        "A subcategory within a language family, which groups together languages that share a common ancestor more recent than the proto-language of the language family."
      ],
      "links": [
        [
          "linguistics",
          "linguistics"
        ],
        [
          "language family",
          "language family"
        ],
        [
          "proto-language",
          "proto-language"
        ]
      ],
      "raw_glosses": [
        "(linguistics) A subcategory within a language family, which groups together languages that share a common ancestor more recent than the proto-language of the language family."
      ],
      "topics": [
        "human-sciences",
        "linguistics",
        "sciences"
      ]
    }
  ],
  "translations": [
    {
      "code": "cmn",
      "lang": "Chinese Mandarin",
      "sense": "set of languages",
      "word": "語族"
    },
    {
      "code": "cmn",
      "lang": "Chinese Mandarin",
      "roman": "yǔzú",
      "sense": "set of languages",
      "word": "语族"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "set of languages",
      "tags": [
        "masculine"
      ],
      "word": "Sprachzweig"
    }
  ],
  "word": "language branch"
}