"big break" meaning in English

{
  "forms": [
    {
      "form": "big breaks",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "big break (plural big breaks)",
      "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"
        }
      ],
      "examples": [
        {
          "ref": "2012, Andrew Martin, Underground Overground: A passenger's history of the Tube, Profile Books, page 93",
          "text": "The East London Line gained a connection to the Jubilee Line Extension when a new station was added at Canada Water in 1999, but its big break came in 2010, when it was incorporated into the London Overground, a network that rehabilitates some dowdy and obscure suburban lines (most particularly the old North London Railway) to create an orbital railway for the capital.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A breakthrough, especially the first big hit of a previously unknown performer or performers in the entertainment industry."
      ],
      "id": "en-big_break-en-noun-tcVuajM4",
      "links": [
        [
          "breakthrough",
          "breakthrough"
        ]
      ],
      "raw_glosses": [
        "(entertainment, idiomatic) A breakthrough, especially the first big hit of a previously unknown performer or performers in the entertainment industry."
      ],
      "tags": [
        "idiomatic"
      ],
      "topics": [
        "entertainment",
        "lifestyle"
      ],
      "translations": [
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "(entertainment) A breakthrough, especially the first big hit of a previously unknown performer or performers",
          "word": "läpimurto"
        },
        {
          "code": "fr",
          "lang": "French",
          "sense": "(entertainment) A breakthrough, especially the first big hit of a previously unknown performer or performers",
          "tags": [
            "feminine"
          ],
          "word": "percée"
        }
      ]
    }
  ],
  "sounds": [
    {
      "audio": "en-au-big break.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/a/ad/En-au-big_break.ogg/En-au-big_break.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/a/ad/En-au-big_break.ogg",
      "tags": [
        "Australia"
      ],
      "text": "Audio (AU)"
    }
  ],
  "word": "big break"
}

{
  "forms": [
    {
      "form": "big breaks",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "big break (plural big breaks)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English idioms",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with audio links",
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "2012, Andrew Martin, Underground Overground: A passenger's history of the Tube, Profile Books, page 93",
          "text": "The East London Line gained a connection to the Jubilee Line Extension when a new station was added at Canada Water in 1999, but its big break came in 2010, when it was incorporated into the London Overground, a network that rehabilitates some dowdy and obscure suburban lines (most particularly the old North London Railway) to create an orbital railway for the capital.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A breakthrough, especially the first big hit of a previously unknown performer or performers in the entertainment industry."
      ],
      "links": [
        [
          "breakthrough",
          "breakthrough"
        ]
      ],
      "raw_glosses": [
        "(entertainment, idiomatic) A breakthrough, especially the first big hit of a previously unknown performer or performers in the entertainment industry."
      ],
      "tags": [
        "idiomatic"
      ],
      "topics": [
        "entertainment",
        "lifestyle"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "en-au-big break.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/a/ad/En-au-big_break.ogg/En-au-big_break.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/a/ad/En-au-big_break.ogg",
      "tags": [
        "Australia"
      ],
      "text": "Audio (AU)"
    }
  ],
  "translations": [
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "(entertainment) A breakthrough, especially the first big hit of a previously unknown performer or performers",
      "word": "läpimurto"
    },
    {
      "code": "fr",
      "lang": "French",
      "sense": "(entertainment) A breakthrough, especially the first big hit of a previously unknown performer or performers",
      "tags": [
        "feminine"
      ],
      "word": "percée"
    }
  ],
  "word": "big break"
}