"black ivory" meaning in All languages combined

{
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "black ivory (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English euphemisms",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "People",
          "orig": "en:People",
          "parents": [
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Slaves",
          "orig": "en:Slaves",
          "parents": [
            "Servants",
            "Slavery",
            "Occupations",
            "Society",
            "Work",
            "People",
            "All topics",
            "Human activity",
            "Human",
            "Fundamental",
            "Human behaviour"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Black slaves, regarded as cargo in the slave trade."
      ],
      "id": "en-black_ivory-en-noun-yccmmAn6",
      "links": [
        [
          "Black",
          "black"
        ],
        [
          "slave",
          "slave"
        ],
        [
          "cargo",
          "cargo"
        ],
        [
          "slave trade",
          "slave trade"
        ]
      ],
      "raw_glosses": [
        "(historical, euphemistic) Black slaves, regarded as cargo in the slave trade."
      ],
      "tags": [
        "euphemistic",
        "historical",
        "uncountable"
      ]
    }
  ],
  "word": "black ivory"
}

{
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "black ivory (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English euphemisms",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with historical senses",
        "English uncountable nouns",
        "en:People",
        "en:Slaves"
      ],
      "glosses": [
        "Black slaves, regarded as cargo in the slave trade."
      ],
      "links": [
        [
          "Black",
          "black"
        ],
        [
          "slave",
          "slave"
        ],
        [
          "cargo",
          "cargo"
        ],
        [
          "slave trade",
          "slave trade"
        ]
      ],
      "raw_glosses": [
        "(historical, euphemistic) Black slaves, regarded as cargo in the slave trade."
      ],
      "tags": [
        "euphemistic",
        "historical",
        "uncountable"
      ]
    }
  ],
  "word": "black ivory"
}