"D/D" meaning in All languages combined

{
  "forms": [
    {
      "form": "D",
      "tags": [
        "canonical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "D (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "drugs and disease"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "English coordinated pairs",
          "parents": [
            "Coordinated pairs",
            "Terms by etymology"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "Alternative forms: DD, D&D"
        },
        {
          "ref": "1996 October 4, “Variations”, in The Boston Phoenix, volume 25, number 40, Boston, Mass.: The Phoenix Media/Communications Group, Adult Services, page 3:",
          "text": "MWM, 43, blonde, biue, 5’10”, handsome + secure. I want a BF, 20-40, gorgeous, w/great body, for daytime, discreet, intimate, romantic + friendship meetings. Must have SOH, D/D free, and would enjoy my company for fun. M/D/S, RI only.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Initialism of drugs and disease."
      ],
      "id": "en-D/D-en-noun-T1YeCRVc",
      "links": [
        [
          "personal ad",
          "personal ad"
        ],
        [
          "drug",
          "drug#English"
        ],
        [
          "disease",
          "disease#English"
        ]
      ],
      "raw_glosses": [
        "(in personal ads) Initialism of drugs and disease."
      ],
      "raw_tags": [
        "in personal ads"
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "initialism",
        "uncountable"
      ]
    }
  ],
  "word": "D/D"
}

{
  "forms": [
    {
      "form": "D",
      "tags": [
        "canonical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "D (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "drugs and disease"
        }
      ],
      "categories": [
        "English coordinated pairs",
        "English entries with incorrect language header",
        "English initialisms",
        "English lemmas",
        "English nouns",
        "English terms with quotations",
        "English uncountable nouns",
        "English words without vowels",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "text": "Alternative forms: DD, D&D"
        },
        {
          "ref": "1996 October 4, “Variations”, in The Boston Phoenix, volume 25, number 40, Boston, Mass.: The Phoenix Media/Communications Group, Adult Services, page 3:",
          "text": "MWM, 43, blonde, biue, 5’10”, handsome + secure. I want a BF, 20-40, gorgeous, w/great body, for daytime, discreet, intimate, romantic + friendship meetings. Must have SOH, D/D free, and would enjoy my company for fun. M/D/S, RI only.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Initialism of drugs and disease."
      ],
      "links": [
        [
          "personal ad",
          "personal ad"
        ],
        [
          "drug",
          "drug#English"
        ],
        [
          "disease",
          "disease#English"
        ]
      ],
      "raw_glosses": [
        "(in personal ads) Initialism of drugs and disease."
      ],
      "raw_tags": [
        "in personal ads"
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "initialism",
        "uncountable"
      ]
    }
  ],
  "word": "D/D"
}