"RUM" meaning in English

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      "expansion": "RUM (uncountable)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "real user monitoring"
        }
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          "langcode": "en",
          "name": "Computing",
          "orig": "en:Computing",
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      "examples": [
        {
          "ref": "2009, Alistair Croll, Sean Power, Complete Web Monitoring: Watching your visitors, performance, communities, and competitors, O'Reilly, page 354",
          "text": "RUM may involve sniffing the network connection, adding JavaScript to pages, installing agents on end user machines, or some combination thereof.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Initialism of real user monitoring."
      ],
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        "(computing) Initialism of real user monitoring."
      ],
      "tags": [
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      "topics": [
        "computing",
        "engineering",
        "mathematics",
        "natural-sciences",
        "physical-sciences",
        "sciences"
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  "word": "RUM"
}

{
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      "expansion": "RUM (uncountable)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "real user monitoring"
        }
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        "English uncountable nouns",
        "en:Computing"
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      "examples": [
        {
          "ref": "2009, Alistair Croll, Sean Power, Complete Web Monitoring: Watching your visitors, performance, communities, and competitors, O'Reilly, page 354",
          "text": "RUM may involve sniffing the network connection, adding JavaScript to pages, installing agents on end user machines, or some combination thereof.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Initialism of real user monitoring."
      ],
      "links": [
        [
          "computing",
          "computing#Noun"
        ],
        [
          "real user monitoring",
          "w:real user monitoring"
        ]
      ],
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        "(computing) Initialism of real user monitoring."
      ],
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      "topics": [
        "computing",
        "engineering",
        "mathematics",
        "natural-sciences",
        "physical-sciences",
        "sciences"
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  "word": "RUM"
}