"blackspot" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "black",
        "3": "spot"
      },
      "expansion": "black + spot",
      "name": "compound"
    }
  ],
  "etymology_text": "black + spot",
  "forms": [
    {
      "form": "blackspots",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "blackspot (plural blackspots)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "black spot"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "derived": [
        {
          "word": "accident blackspot"
        }
      ],
      "examples": [
        {
          "ref": "2020 August 12, “Network News: Funding counters signal blackspots”, in Rail, page 14",
          "text": "Secretary of State for Transport Grant Shapps has announced £200,000 funding towards research into developing a mobile telephone antenna prototype for rail gantries. If successful, the antenna could be installed on overhead line equipment gantries and help eliminate signal blackspots across the rail network.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Alternative form of black spot"
      ],
      "id": "en-blackspot-en-noun-PVdHwVA5",
      "links": [
        [
          "black spot",
          "black spot#English"
        ]
      ],
      "related": [
        {
          "word": "blackspot sea bream"
        }
      ],
      "tags": [
        "alt-of",
        "alternative"
      ]
    }
  ],
  "word": "blackspot"
}

{
  "derived": [
    {
      "word": "accident blackspot"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "black",
        "3": "spot"
      },
      "expansion": "black + spot",
      "name": "compound"
    }
  ],
  "etymology_text": "black + spot",
  "forms": [
    {
      "form": "blackspots",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "blackspot (plural blackspots)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "blackspot sea bream"
    }
  ],
  "senses": [
    {
      "alt_of": [
        {
          "word": "black spot"
        }
      ],
      "categories": [
        "English compound terms",
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "2020 August 12, “Network News: Funding counters signal blackspots”, in Rail, page 14",
          "text": "Secretary of State for Transport Grant Shapps has announced £200,000 funding towards research into developing a mobile telephone antenna prototype for rail gantries. If successful, the antenna could be installed on overhead line equipment gantries and help eliminate signal blackspots across the rail network.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Alternative form of black spot"
      ],
      "links": [
        [
          "black spot",
          "black spot#English"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative"
      ]
    }
  ],
  "word": "blackspot"
}