"top billing" meaning in English

{
  "forms": [
    {
      "form": "top billings",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "-",
        "2": "s"
      },
      "expansion": "top billing (usually uncountable, plural top billings)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Film",
          "orig": "en:Film",
          "parents": [
            "Entertainment",
            "Mass media",
            "Culture",
            "Media",
            "Society",
            "Communication",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Theater",
          "orig": "en:Theater",
          "parents": [
            "Art",
            "Entertainment",
            "Culture",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "_dis": "95 5",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "examples": [
        {
          "text": "She had top billing on the past three films.",
          "type": "example"
        }
      ],
      "glosses": [
        "The most prominent name on lists of cast and crew, or in advertising."
      ],
      "id": "en-top_billing-en-noun-Twl5mnEp",
      "links": [
        [
          "theater",
          "theater"
        ],
        [
          "film",
          "film#Noun"
        ]
      ],
      "raw_glosses": [
        "(theater, film) The most prominent name on lists of cast and crew, or in advertising."
      ],
      "related": [
        {
          "_dis1": "98 2",
          "word": "undercard"
        }
      ],
      "synonyms": [
        {
          "word": "star billing"
        },
        {
          "word": "topline"
        }
      ],
      "tags": [
        "uncountable",
        "usually"
      ],
      "topics": [
        "broadcasting",
        "entertainment",
        "film",
        "lifestyle",
        "media",
        "television",
        "theater"
      ]
    },
    {
      "categories": [],
      "examples": [
        {
          "ref": "2016 May 11, David Cameron, “Engagements”, in parliamentary debates (House of Commons), volume 609, column 617",
          "text": "I am proud to say that the royal Arctic survey ship will be named after David Attenborough. There was strong support for Boaty McBoatface. I think the submarine on the boat will be named Boaty McBoatface but, quite rightly, Attenborough will take top billing.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A position of prominence."
      ],
      "id": "en-top_billing-en-noun-SU~MXP6o",
      "links": [
        [
          "prominence",
          "prominence"
        ]
      ],
      "raw_glosses": [
        "(figuratively) A position of prominence."
      ],
      "tags": [
        "figuratively",
        "uncountable",
        "usually"
      ]
    }
  ],
  "word": "top billing"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English multiword terms",
    "English nouns",
    "English uncountable nouns"
  ],
  "forms": [
    {
      "form": "top billings",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "-",
        "2": "s"
      },
      "expansion": "top billing (usually uncountable, plural top billings)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "undercard"
    }
  ],
  "senses": [
    {
      "categories": [
        "English terms with usage examples",
        "en:Film",
        "en:Theater"
      ],
      "examples": [
        {
          "text": "She had top billing on the past three films.",
          "type": "example"
        }
      ],
      "glosses": [
        "The most prominent name on lists of cast and crew, or in advertising."
      ],
      "links": [
        [
          "theater",
          "theater"
        ],
        [
          "film",
          "film#Noun"
        ]
      ],
      "raw_glosses": [
        "(theater, film) The most prominent name on lists of cast and crew, or in advertising."
      ],
      "synonyms": [
        {
          "word": "star billing"
        },
        {
          "word": "topline"
        }
      ],
      "tags": [
        "uncountable",
        "usually"
      ],
      "topics": [
        "broadcasting",
        "entertainment",
        "film",
        "lifestyle",
        "media",
        "television",
        "theater"
      ]
    },
    {
      "categories": [
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "2016 May 11, David Cameron, “Engagements”, in parliamentary debates (House of Commons), volume 609, column 617",
          "text": "I am proud to say that the royal Arctic survey ship will be named after David Attenborough. There was strong support for Boaty McBoatface. I think the submarine on the boat will be named Boaty McBoatface but, quite rightly, Attenborough will take top billing.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A position of prominence."
      ],
      "links": [
        [
          "prominence",
          "prominence"
        ]
      ],
      "raw_glosses": [
        "(figuratively) A position of prominence."
      ],
      "tags": [
        "figuratively",
        "uncountable",
        "usually"
      ]
    }
  ],
  "word": "top billing"
}