"Hanoi Hilton" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "Hanoi",
        "3": "Hilton"
      },
      "expansion": "Hanoi + Hilton",
      "name": "compound"
    },
    {
      "args": {
        "1": "en",
        "2": "Hanoi"
      },
      "expansion": "Hanoi",
      "name": "l"
    },
    {
      "args": {
        "1": "en",
        "2": "North Vietnam"
      },
      "expansion": "North Vietnam",
      "name": "l"
    }
  ],
  "etymology_text": "Hanoi + Hilton.\nAn alliterative construction, pairing the location Hanoi (metonymically referring to North Vietnam) with a word referring to lodgings. An ironic reference to the Hilton chain of luxury hotels.",
  "forms": [
    {
      "form": "the Hanoi Hilton",
      "tags": [
        "canonical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "def": "1"
      },
      "expansion": "the Hanoi Hilton",
      "name": "en-proper noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "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": "English entries with language name categories using raw markup",
          "parents": [
            "Entries with language name categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Military",
          "orig": "en:Military",
          "parents": [
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1999 May 30, Luba Vangelova, “From the Hanoi Hilton To the Hilton Hanoi”, in The New York Times, →ISSN",
          "text": "The Hilton Hanoi Opera hotel has opened, a few blocks from Hoa Lo, the infamous “Hanoi Hilton” where American prisoners were held during the Vietnam War. (The few remaining cells of that prison have been preserved as a museum.)",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Hỏa Lò Prison in Vietnam, where prisoners of war were held."
      ],
      "id": "en-Hanoi_Hilton-en-name-cBr2R33r",
      "links": [
        [
          "military",
          "military"
        ],
        [
          "Vietnam",
          "Vietnam#English"
        ],
        [
          "prisoners of war",
          "prisoner of war#English"
        ]
      ],
      "raw_glosses": [
        "(US, military, slang, historical) Hỏa Lò Prison in Vietnam, where prisoners of war were held."
      ],
      "tags": [
        "US",
        "historical",
        "slang"
      ],
      "topics": [
        "government",
        "military",
        "politics",
        "war"
      ]
    }
  ],
  "word": "Hanoi Hilton"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "Hanoi",
        "3": "Hilton"
      },
      "expansion": "Hanoi + Hilton",
      "name": "compound"
    },
    {
      "args": {
        "1": "en",
        "2": "Hanoi"
      },
      "expansion": "Hanoi",
      "name": "l"
    },
    {
      "args": {
        "1": "en",
        "2": "North Vietnam"
      },
      "expansion": "North Vietnam",
      "name": "l"
    }
  ],
  "etymology_text": "Hanoi + Hilton.\nAn alliterative construction, pairing the location Hanoi (metonymically referring to North Vietnam) with a word referring to lodgings. An ironic reference to the Hilton chain of luxury hotels.",
  "forms": [
    {
      "form": "the Hanoi Hilton",
      "tags": [
        "canonical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "def": "1"
      },
      "expansion": "the Hanoi Hilton",
      "name": "en-proper noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "categories": [
        "American English",
        "English compound terms",
        "English entries with incorrect language header",
        "English entries with language name categories using raw markup",
        "English eponyms",
        "English lemmas",
        "English multiword terms",
        "English proper nouns",
        "English slang",
        "English terms with historical senses",
        "English terms with non-redundant non-automated sortkeys",
        "English terms with quotations",
        "English uncountable nouns",
        "en:Military"
      ],
      "examples": [
        {
          "ref": "1999 May 30, Luba Vangelova, “From the Hanoi Hilton To the Hilton Hanoi”, in The New York Times, →ISSN",
          "text": "The Hilton Hanoi Opera hotel has opened, a few blocks from Hoa Lo, the infamous “Hanoi Hilton” where American prisoners were held during the Vietnam War. (The few remaining cells of that prison have been preserved as a museum.)",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Hỏa Lò Prison in Vietnam, where prisoners of war were held."
      ],
      "links": [
        [
          "military",
          "military"
        ],
        [
          "Vietnam",
          "Vietnam#English"
        ],
        [
          "prisoners of war",
          "prisoner of war#English"
        ]
      ],
      "raw_glosses": [
        "(US, military, slang, historical) Hỏa Lò Prison in Vietnam, where prisoners of war were held."
      ],
      "tags": [
        "US",
        "historical",
        "slang"
      ],
      "topics": [
        "government",
        "military",
        "politics",
        "war"
      ]
    }
  ],
  "word": "Hanoi Hilton"
}