"MI5" meaning in English

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  "etymology_text": "Abbreviation of Military Intelligence, Section Five.",
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          "name": "Espionage",
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      "glosses": [
        "The domestic intelligence and counter-espionage agency of the United Kingdom, which operates in secret and whose primary function is to spy on terrorist organizations and others viewed as a threat to British national security. Formally known as the Security Service."
      ],
      "id": "en-MI5-en-name-Q0CyTRPg",
      "links": [
        [
          "Security Service",
          "Security Service"
        ]
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      "related": [
        {
          "word": "MI6"
        },
        {
          "word": "MI9"
        },
        {
          "word": "GCHQ"
        },
        {
          "word": "SAS"
        },
        {
          "word": "SBS"
        },
        {
          "word": "SIS"
        }
      ],
      "synonyms": [
        {
          "word": "Five"
        },
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          "word": "5"
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        {
          "word": "Security Service"
        }
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  "word": "MI5"
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    {
      "word": "MI6"
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    {
      "word": "GCHQ"
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    {
      "word": "SAS"
    },
    {
      "word": "SBS"
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    {
      "word": "SIS"
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        "en:Espionage",
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        "The domestic intelligence and counter-espionage agency of the United Kingdom, which operates in secret and whose primary function is to spy on terrorist organizations and others viewed as a threat to British national security. Formally known as the Security Service."
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        [
          "Security Service",
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  "synonyms": [
    {
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      "word": "5"
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      "word": "Security Service"
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