"white slavery" meaning in English

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      "expansion": "white slavery (uncountable)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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        {
          "kind": "topical",
          "langcode": "en",
          "name": "Sex",
          "orig": "en:Sex",
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        {
          "kind": "topical",
          "langcode": "en",
          "name": "Slavery",
          "orig": "en:Slavery",
          "parents": [
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            "Work",
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            "Human activity",
            "Fundamental",
            "Human behaviour",
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      "examples": [
        {
          "text": "18 February 1990 \"The Adventure of the Cheap Flat\" season 2 episode 7 of Agatha Christie's Poirot: Hastings speaking to Poirot\nMaybe they're not as innocent as thet seem. Suppose they're tied up in some shady import-export business? Drugs, white slavery?"
        }
      ],
      "glosses": [
        "Sexual slavery, particularly the forced prostitution of women of European ancestry."
      ],
      "id": "en-white_slavery-en-noun-ic5rRRfy",
      "links": [
        [
          "slavery",
          "slavery"
        ],
        [
          "prostitution",
          "prostitution"
        ]
      ],
      "tags": [
        "uncountable"
      ],
      "translations": [
        {
          "code": "he",
          "lang": "Hebrew",
          "sense": "white slavery",
          "word": "סחר בנשים וילדים"
        },
        {
          "code": "he",
          "lang": "Hebrew",
          "sense": "white slavery",
          "word": "עבדות לבנה"
        }
      ]
    }
  ],
  "word": "white slavery"
}

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      "expansion": "white slavery (uncountable)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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        "en:Sex",
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      "examples": [
        {
          "text": "18 February 1990 \"The Adventure of the Cheap Flat\" season 2 episode 7 of Agatha Christie's Poirot: Hastings speaking to Poirot\nMaybe they're not as innocent as thet seem. Suppose they're tied up in some shady import-export business? Drugs, white slavery?"
        }
      ],
      "glosses": [
        "Sexual slavery, particularly the forced prostitution of women of European ancestry."
      ],
      "links": [
        [
          "slavery",
          "slavery"
        ],
        [
          "prostitution",
          "prostitution"
        ]
      ],
      "tags": [
        "uncountable"
      ]
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  "translations": [
    {
      "code": "he",
      "lang": "Hebrew",
      "sense": "white slavery",
      "word": "סחר בנשים וילדים"
    },
    {
      "code": "he",
      "lang": "Hebrew",
      "sense": "white slavery",
      "word": "עבדות לבנה"
    }
  ],
  "word": "white slavery"
}