"B40" meaning in English

{
  "coordinate_terms": [
    {
      "_dis1": "0 0",
      "word": "M20"
    },
    {
      "_dis1": "0 0",
      "word": "middle-income Malaysian households"
    },
    {
      "_dis1": "0 0",
      "word": "T20"
    },
    {
      "_dis1": "0 0",
      "word": "top-income Malaysian households"
    }
  ],
  "etymology_text": "Short for bottom 40 percent, a portion of Malaysia's population.",
  "forms": [
    {
      "form": "B40s",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "B40 (countable and uncountable, plural B40s)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "89 11",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "81 19",
          "kind": "other",
          "name": "English entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "100 0",
          "kind": "place",
          "langcode": "en",
          "name": "Malaysia",
          "orig": "en:Malaysia",
          "parents": [
            "Asia",
            "Earth",
            "Eurasia",
            "Nature",
            "All topics",
            "Fundamental"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "96 4",
          "kind": "topical",
          "langcode": "en",
          "name": "Malaysian politics",
          "orig": "en:Malaysian politics",
          "parents": [
            "Malaysia",
            "Politics",
            "Asia",
            "Society",
            "Earth",
            "Eurasia",
            "All topics",
            "Nature",
            "Fundamental"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "A household with a household income below 4,850 Malaysian ringgit per month."
      ],
      "id": "en-B40-en-noun-egbqSVXX",
      "links": [
        [
          "household",
          "household"
        ],
        [
          "household income",
          "household income"
        ],
        [
          "Malaysian",
          "Malaysian"
        ],
        [
          "ringgit",
          "ringgit"
        ]
      ],
      "tags": [
        "Malaysia",
        "countable",
        "uncountable"
      ]
    },
    {
      "glosses": [
        "A person from such a household."
      ],
      "id": "en-B40-en-noun-Nz4wEFUp",
      "tags": [
        "Malaysia",
        "countable",
        "uncountable"
      ]
    }
  ],
  "word": "B40"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English entries with topic categories using raw markup",
    "English lemmas",
    "English nouns",
    "English terms spelled with numbers",
    "English uncountable nouns",
    "English words without vowels",
    "en:Malaysia",
    "en:Malaysian politics"
  ],
  "coordinate_terms": [
    {
      "word": "M20"
    },
    {
      "word": "middle-income Malaysian households"
    },
    {
      "word": "T20"
    },
    {
      "word": "top-income Malaysian households"
    }
  ],
  "etymology_text": "Short for bottom 40 percent, a portion of Malaysia's population.",
  "forms": [
    {
      "form": "B40s",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "B40 (countable and uncountable, plural B40s)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "A household with a household income below 4,850 Malaysian ringgit per month."
      ],
      "links": [
        [
          "household",
          "household"
        ],
        [
          "household income",
          "household income"
        ],
        [
          "Malaysian",
          "Malaysian"
        ],
        [
          "ringgit",
          "ringgit"
        ]
      ],
      "tags": [
        "Malaysia",
        "countable",
        "uncountable"
      ]
    },
    {
      "glosses": [
        "A person from such a household."
      ],
      "tags": [
        "Malaysia",
        "countable",
        "uncountable"
      ]
    }
  ],
  "word": "B40"
}