"40" meaning in English

{
  "forms": [
    {
      "form": "40s",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "40 (plural 40s)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "American English",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 2 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1995 July 4, “I got 5 on it”, in Operation Stackola, performed by Luniz and Michael Marshall (singer):",
          "text": "[Chorus:Michael Marshall] I got 5 on it (got it, good), grab your 40 let’s get keyed. I got 5 on it, messin’ with that Indo weed.",
          "type": "quote"
        },
        {
          "ref": "2000, “Drug Ballad”, in The Marshall Mathers LP, performed by Eminem:",
          "text": "But when it's all said and done, I'll be forty / Before I know it with a 40 on the porch tellin' stories",
          "type": "quote"
        }
      ],
      "glosses": [
        "A bottle containing 40 fluid ounces of malt liquor beer."
      ],
      "id": "en-40-en-noun-sPszF~1N",
      "links": [
        [
          "bottle",
          "bottle"
        ],
        [
          "fluid",
          "fluid"
        ],
        [
          "ounce",
          "ounce"
        ],
        [
          "malt liquor",
          "malt liquor"
        ],
        [
          "beer",
          "beer"
        ]
      ],
      "raw_glosses": [
        "(US, slang) A bottle containing 40 fluid ounces of malt liquor beer."
      ],
      "related": [
        {
          "word": "40k"
        },
        {
          "word": "40-gon"
        }
      ],
      "tags": [
        "US",
        "slang"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-au-40.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/3/31/En-au-40.ogg/En-au-40.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/3/31/En-au-40.ogg"
    }
  ],
  "word": "40"
}

{
  "forms": [
    {
      "form": "40s",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "40 (plural 40s)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "40k"
    },
    {
      "word": "40-gon"
    }
  ],
  "senses": [
    {
      "categories": [
        "American English",
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English slang",
        "English terms spelled with numbers",
        "English terms with quotations",
        "English words without vowels",
        "Pages with 2 entries",
        "Pages with entries"
      ],
      "examples": [
        {
          "ref": "1995 July 4, “I got 5 on it”, in Operation Stackola, performed by Luniz and Michael Marshall (singer):",
          "text": "[Chorus:Michael Marshall] I got 5 on it (got it, good), grab your 40 let’s get keyed. I got 5 on it, messin’ with that Indo weed.",
          "type": "quote"
        },
        {
          "ref": "2000, “Drug Ballad”, in The Marshall Mathers LP, performed by Eminem:",
          "text": "But when it's all said and done, I'll be forty / Before I know it with a 40 on the porch tellin' stories",
          "type": "quote"
        }
      ],
      "glosses": [
        "A bottle containing 40 fluid ounces of malt liquor beer."
      ],
      "links": [
        [
          "bottle",
          "bottle"
        ],
        [
          "fluid",
          "fluid"
        ],
        [
          "ounce",
          "ounce"
        ],
        [
          "malt liquor",
          "malt liquor"
        ],
        [
          "beer",
          "beer"
        ]
      ],
      "raw_glosses": [
        "(US, slang) A bottle containing 40 fluid ounces of malt liquor beer."
      ],
      "tags": [
        "US",
        "slang"
      ]
    }
  ],
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      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/3/31/En-au-40.ogg/En-au-40.ogg.mp3",
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  "word": "40"
}