"чврстина" meaning in Serbo-Croatian

{
  "forms": [
    {
      "form": "чврстѝна",
      "tags": [
        "canonical",
        "feminine"
      ]
    },
    {
      "form": "čvrstìna",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "no-table-tags",
      "source": "declension",
      "tags": [
        "table-tags"
      ]
    },
    {
      "form": "sh-decl-noun-unc\n",
      "source": "declension",
      "tags": [
        "inflection-template"
      ]
    },
    {
      "form": "чврстина",
      "source": "declension",
      "tags": [
        "nominative",
        "singular"
      ]
    },
    {
      "form": "чврстине",
      "source": "declension",
      "tags": [
        "genitive",
        "singular"
      ]
    },
    {
      "form": "чврстини",
      "source": "declension",
      "tags": [
        "dative",
        "singular"
      ]
    },
    {
      "form": "чврстину",
      "source": "declension",
      "tags": [
        "accusative",
        "singular"
      ]
    },
    {
      "form": "чврстино",
      "source": "declension",
      "tags": [
        "singular",
        "vocative"
      ]
    },
    {
      "form": "чврстини",
      "source": "declension",
      "tags": [
        "locative",
        "singular"
      ]
    },
    {
      "form": "чврстином",
      "source": "declension",
      "tags": [
        "instrumental",
        "singular"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "g": "f",
        "head": "чврстѝна"
      },
      "expansion": "чврстѝна f (Latin spelling čvrstìna)",
      "name": "sh-noun"
    }
  ],
  "hyphenation": [
    "чврс‧ти‧на"
  ],
  "inflection_templates": [
    {
      "args": {
        "1": "чврстина",
        "2": "чврстине",
        "3": "чврстини",
        "4": "чврстину",
        "5": "чврстино",
        "6": "чврстини",
        "7": "чврстином"
      },
      "name": "sh-decl-noun-unc"
    }
  ],
  "lang": "Serbo-Croatian",
  "lang_code": "sh",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Serbo-Croatian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "firmness, hardness, toughness"
      ],
      "id": "en-чврстина-sh-noun-zaAZ7VVu",
      "links": [
        [
          "firmness",
          "firmness"
        ],
        [
          "hardness",
          "hardness"
        ],
        [
          "toughness",
          "toughness"
        ]
      ],
      "raw_glosses": [
        "(uncountable) firmness, hardness, toughness"
      ],
      "tags": [
        "uncountable"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/t͡ʃʋr̩stǐna/"
    }
  ],
  "word": "чврстина"
}

{
  "forms": [
    {
      "form": "чврстѝна",
      "tags": [
        "canonical",
        "feminine"
      ]
    },
    {
      "form": "čvrstìna",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "no-table-tags",
      "source": "declension",
      "tags": [
        "table-tags"
      ]
    },
    {
      "form": "sh-decl-noun-unc\n",
      "source": "declension",
      "tags": [
        "inflection-template"
      ]
    },
    {
      "form": "чврстина",
      "source": "declension",
      "tags": [
        "nominative",
        "singular"
      ]
    },
    {
      "form": "чврстине",
      "source": "declension",
      "tags": [
        "genitive",
        "singular"
      ]
    },
    {
      "form": "чврстини",
      "source": "declension",
      "tags": [
        "dative",
        "singular"
      ]
    },
    {
      "form": "чврстину",
      "source": "declension",
      "tags": [
        "accusative",
        "singular"
      ]
    },
    {
      "form": "чврстино",
      "source": "declension",
      "tags": [
        "singular",
        "vocative"
      ]
    },
    {
      "form": "чврстини",
      "source": "declension",
      "tags": [
        "locative",
        "singular"
      ]
    },
    {
      "form": "чврстином",
      "source": "declension",
      "tags": [
        "instrumental",
        "singular"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "g": "f",
        "head": "чврстѝна"
      },
      "expansion": "чврстѝна f (Latin spelling čvrstìna)",
      "name": "sh-noun"
    }
  ],
  "hyphenation": [
    "чврс‧ти‧на"
  ],
  "inflection_templates": [
    {
      "args": {
        "1": "чврстина",
        "2": "чврстине",
        "3": "чврстини",
        "4": "чврстину",
        "5": "чврстино",
        "6": "чврстини",
        "7": "чврстином"
      },
      "name": "sh-decl-noun-unc"
    }
  ],
  "lang": "Serbo-Croatian",
  "lang_code": "sh",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Serbo-Croatian entries with incorrect language header",
        "Serbo-Croatian feminine nouns",
        "Serbo-Croatian lemmas",
        "Serbo-Croatian nouns",
        "Serbo-Croatian terms with IPA pronunciation",
        "Serbo-Croatian uncountable nouns"
      ],
      "glosses": [
        "firmness, hardness, toughness"
      ],
      "links": [
        [
          "firmness",
          "firmness"
        ],
        [
          "hardness",
          "hardness"
        ],
        [
          "toughness",
          "toughness"
        ]
      ],
      "raw_glosses": [
        "(uncountable) firmness, hardness, toughness"
      ],
      "tags": [
        "uncountable"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/t͡ʃʋr̩stǐna/"
    }
  ],
  "word": "чврстина"
}