"Černo" meaning in Slovak

{
  "etymology_text": "From čierny (“black”).",
  "forms": [
    {
      "form": "Černová",
      "tags": [
        "feminine"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m-pr",
        "f": "Černová"
      },
      "expansion": "Černo m pers (female equivalent Černová)",
      "name": "sk-proper noun"
    }
  ],
  "lang": "Slovak",
  "lang_code": "sk",
  "pos": "name",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Slovak entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "name": "Slovak male surnames",
          "parents": [
            "Male surnames",
            "Surnames",
            "Names",
            "All topics",
            "Proper nouns",
            "Terms by semantic function",
            "Fundamental",
            "Nouns",
            "Lemmas"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Slovak surnames",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "a male surname"
      ],
      "id": "en-Černo-sk-name-IRlLAcDj",
      "links": [
        [
          "surname",
          "surname"
        ]
      ],
      "tags": [
        "masculine",
        "person"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ˈt͡ʃernɔ]"
    }
  ],
  "word": "Černo"
}

{
  "etymology_text": "From čierny (“black”).",
  "forms": [
    {
      "form": "Černová",
      "tags": [
        "feminine"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m-pr",
        "f": "Černová"
      },
      "expansion": "Černo m pers (female equivalent Černová)",
      "name": "sk-proper noun"
    }
  ],
  "lang": "Slovak",
  "lang_code": "sk",
  "pos": "name",
  "senses": [
    {
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Slovak entries with incorrect language header",
        "Slovak lemmas",
        "Slovak male surnames",
        "Slovak masculine nouns",
        "Slovak personal nouns",
        "Slovak proper nouns",
        "Slovak surnames",
        "Slovak terms with IPA pronunciation"
      ],
      "glosses": [
        "a male surname"
      ],
      "links": [
        [
          "surname",
          "surname"
        ]
      ],
      "tags": [
        "masculine",
        "person"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ˈt͡ʃernɔ]"
    }
  ],
  "word": "Černo"
}