"Iron Curtain" meaning in Anglais

{
  "categories": [
    {
      "kind": "other",
      "name": "Noms propres en anglais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Anglais",
      "orig": "anglais",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "Voir iron et curtain."
  ],
  "lang": "Anglais",
  "lang_code": "en",
  "pos": "name",
  "pos_title": "Nom propre",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Exemples en anglais",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Exemples en anglais à traduire",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Lexique en anglais de la politique",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Lexique en anglais de l’histoire",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "Winston Churchill, Sinews of Peace, 1946.",
          "text": "From Stettin in the Baltic to Trieste in the Adriatic an iron curtain has descended across the Continent."
        }
      ],
      "glosses": [
        "Rideau de fer (frontière entre l’Europe occidentale et l’Europe orientale pendant la guerre froide)."
      ],
      "id": "fr-Iron_Curtain-en-name-E34yl51t",
      "topics": [
        "history",
        "politics"
      ]
    }
  ],
  "word": "Iron Curtain"
}

{
  "categories": [
    "Noms propres en anglais",
    "anglais"
  ],
  "etymology_texts": [
    "Voir iron et curtain."
  ],
  "lang": "Anglais",
  "lang_code": "en",
  "pos": "name",
  "pos_title": "Nom propre",
  "senses": [
    {
      "categories": [
        "Exemples en anglais",
        "Exemples en anglais à traduire",
        "Lexique en anglais de la politique",
        "Lexique en anglais de l’histoire"
      ],
      "examples": [
        {
          "ref": "Winston Churchill, Sinews of Peace, 1946.",
          "text": "From Stettin in the Baltic to Trieste in the Adriatic an iron curtain has descended across the Continent."
        }
      ],
      "glosses": [
        "Rideau de fer (frontière entre l’Europe occidentale et l’Europe orientale pendant la guerre froide)."
      ],
      "topics": [
        "history",
        "politics"
      ]
    }
  ],
  "word": "Iron Curtain"
}