"double bar" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "Compound"
      },
      "expansion": "Compound",
      "name": "glossary"
    },
    {
      "args": {
        "1": "en",
        "2": "double",
        "3": "bar"
      },
      "expansion": "Compound of double + bar",
      "name": "com+"
    }
  ],
  "etymology_text": "Compound of double + bar.",
  "forms": [
    {
      "form": "double bars",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "double bar (plural double bars)",
      "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": "Music",
          "orig": "en:Music",
          "parents": [
            "Art",
            "Sound",
            "Culture",
            "Energy",
            "Society",
            "Nature",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "derived": [
        {
          "word": "double bar line"
        }
      ],
      "glosses": [
        "a symbol, consisting of two ordinary bar lines or a single heavy one, that marks the end of a composition or a section within it"
      ],
      "id": "en-double_bar-en-noun-VWJo34i6",
      "links": [
        [
          "music",
          "music"
        ],
        [
          "symbol",
          "symbol"
        ],
        [
          "consisting",
          "consisting"
        ],
        [
          "ordinary",
          "ordinary"
        ],
        [
          "bar line",
          "bar line"
        ],
        [
          "heavy",
          "heavy"
        ],
        [
          "mark",
          "mark"
        ],
        [
          "composition",
          "composition"
        ],
        [
          "section",
          "section"
        ]
      ],
      "raw_glosses": [
        "(music) a symbol, consisting of two ordinary bar lines or a single heavy one, that marks the end of a composition or a section within it"
      ],
      "topics": [
        "entertainment",
        "lifestyle",
        "music"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈdʌb(ə)l bɑɹ/",
      "tags": [
        "General-American"
      ]
    }
  ],
  "word": "double bar"
}

{
  "derived": [
    {
      "word": "double bar line"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "Compound"
      },
      "expansion": "Compound",
      "name": "glossary"
    },
    {
      "args": {
        "1": "en",
        "2": "double",
        "3": "bar"
      },
      "expansion": "Compound of double + bar",
      "name": "com+"
    }
  ],
  "etymology_text": "Compound of double + bar.",
  "forms": [
    {
      "form": "double bars",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "double bar (plural double bars)",
      "name": "en-noun"
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English compound terms",
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Music"
      ],
      "glosses": [
        "a symbol, consisting of two ordinary bar lines or a single heavy one, that marks the end of a composition or a section within it"
      ],
      "links": [
        [
          "music",
          "music"
        ],
        [
          "symbol",
          "symbol"
        ],
        [
          "consisting",
          "consisting"
        ],
        [
          "ordinary",
          "ordinary"
        ],
        [
          "bar line",
          "bar line"
        ],
        [
          "heavy",
          "heavy"
        ],
        [
          "mark",
          "mark"
        ],
        [
          "composition",
          "composition"
        ],
        [
          "section",
          "section"
        ]
      ],
      "raw_glosses": [
        "(music) a symbol, consisting of two ordinary bar lines or a single heavy one, that marks the end of a composition or a section within it"
      ],
      "topics": [
        "entertainment",
        "lifestyle",
        "music"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈdʌb(ə)l bɑɹ/",
      "tags": [
        "General-American"
      ]
    }
  ],
  "word": "double bar"
}