"top 40" meaning in English

{
  "forms": [
    {
      "form": "top 40s",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "head": "top 40"
      },
      "expansion": "top 40 (plural top 40s)",
      "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": "topical",
          "langcode": "en",
          "name": "Forty",
          "orig": "en:Forty",
          "parents": [
            "Numbers",
            "All topics",
            "Terms by semantic function",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Music",
          "orig": "en:Music",
          "parents": [
            "Art",
            "Sound",
            "Culture",
            "Energy",
            "Society",
            "Nature",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Radio",
          "orig": "en:Radio",
          "parents": [
            "Telecommunications",
            "Communication",
            "Technology",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "Coordinate term: CHR"
        },
        {
          "text": "I was listening to a top 40 radio station.",
          "type": "example"
        },
        {
          "ref": "2014, Eric Weisbard, Top 40 Democracy […], University of Chicago Press, page 4",
          "text": "Nearly every history of Top 40 launches from an anecdote about how radio station manager Todd Storz came up with the idea sometime between World War II and the early 1950s, watching with friends in a bar in Omaha as customers repeatedly punched up the same few songs on the jukebox.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A radio format for popular music, usually including the 40 most popular songs at a given time."
      ],
      "id": "en-top_40-en-noun-BrDn56It",
      "links": [
        [
          "music",
          "music"
        ],
        [
          "radio",
          "radio"
        ],
        [
          "radio format",
          "radio format"
        ],
        [
          "popular music",
          "popular music"
        ]
      ],
      "raw_glosses": [
        "(music, radio) A radio format for popular music, usually including the 40 most popular songs at a given time."
      ],
      "related": [
        {
          "word": "top 10"
        },
        {
          "word": "hit list"
        },
        {
          "word": "hit parade"
        }
      ],
      "synonyms": [
        {
          "word": "Top 40"
        },
        {
          "word": "top forty"
        }
      ],
      "topics": [
        "broadcasting",
        "entertainment",
        "lifestyle",
        "media",
        "music",
        "radio"
      ],
      "wikipedia": [
        "Top 40"
      ]
    }
  ],
  "word": "top 40"
}

{
  "forms": [
    {
      "form": "top 40s",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "head": "top 40"
      },
      "expansion": "top 40 (plural top 40s)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "top 10"
    },
    {
      "word": "hit list"
    },
    {
      "word": "hit parade"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms spelled with numbers",
        "English terms with quotations",
        "English terms with usage examples",
        "en:Forty",
        "en:Music",
        "en:Radio"
      ],
      "examples": [
        {
          "text": "Coordinate term: CHR"
        },
        {
          "text": "I was listening to a top 40 radio station.",
          "type": "example"
        },
        {
          "ref": "2014, Eric Weisbard, Top 40 Democracy […], University of Chicago Press, page 4",
          "text": "Nearly every history of Top 40 launches from an anecdote about how radio station manager Todd Storz came up with the idea sometime between World War II and the early 1950s, watching with friends in a bar in Omaha as customers repeatedly punched up the same few songs on the jukebox.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A radio format for popular music, usually including the 40 most popular songs at a given time."
      ],
      "links": [
        [
          "music",
          "music"
        ],
        [
          "radio",
          "radio"
        ],
        [
          "radio format",
          "radio format"
        ],
        [
          "popular music",
          "popular music"
        ]
      ],
      "raw_glosses": [
        "(music, radio) A radio format for popular music, usually including the 40 most popular songs at a given time."
      ],
      "topics": [
        "broadcasting",
        "entertainment",
        "lifestyle",
        "media",
        "music",
        "radio"
      ],
      "wikipedia": [
        "Top 40"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "Top 40"
    },
    {
      "word": "top forty"
    }
  ],
  "word": "top 40"
}

{
  "called_from": "form_descriptions/1089",
  "msg": "suspicious unhandled suffix in English: 'top 10', originally 'top 10'",
  "path": [
    "top 40"
  ],
  "section": "English",
  "subsection": "noun",
  "title": "top 40",
  "trace": ""
}