"-ница" meaning in Serbo-Croatian

{
  "etymology_templates": [
    {
      "args": {
        "1": "sh",
        "2": "-ник",
        "3": "-а"
      },
      "expansion": "-ник + -а",
      "name": "suffix"
    }
  ],
  "etymology_text": "From -ник + -а.",
  "forms": [
    {
      "form": "-nica",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "-ница (Latin spelling -nica)",
      "name": "sh-suffix"
    }
  ],
  "lang": "Serbo-Croatian",
  "lang_code": "sh",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 3 entries",
          "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"
        },
        {
          "kind": "other",
          "name": "Serbo-Croatian terms suffixed with -а",
          "parents": [],
          "source": "w"
        }
      ],
      "form_of": [
        {
          "word": "-ник"
        }
      ],
      "glosses": [
        "female equivalent of -ник"
      ],
      "id": "en--ница-sh-suffix-EZRbmrAe",
      "links": [
        [
          "-ник",
          "-ник#Serbo-Croatian"
        ]
      ],
      "tags": [
        "feminine",
        "form-of",
        "morpheme"
      ]
    }
  ],
  "word": "-ница"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "sh",
        "2": "-ник",
        "3": "-а"
      },
      "expansion": "-ник + -а",
      "name": "suffix"
    }
  ],
  "etymology_text": "From -ник + -а.",
  "forms": [
    {
      "form": "-nica",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "-ница (Latin spelling -nica)",
      "name": "sh-suffix"
    }
  ],
  "lang": "Serbo-Croatian",
  "lang_code": "sh",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        "Pages with 3 entries",
        "Pages with entries",
        "Serbo-Croatian entries with incorrect language header",
        "Serbo-Croatian female equivalent suffixes",
        "Serbo-Croatian lemmas",
        "Serbo-Croatian suffixes",
        "Serbo-Croatian terms suffixed with -а"
      ],
      "form_of": [
        {
          "word": "-ник"
        }
      ],
      "glosses": [
        "female equivalent of -ник"
      ],
      "links": [
        [
          "-ник",
          "-ник#Serbo-Croatian"
        ]
      ],
      "tags": [
        "feminine",
        "form-of",
        "morpheme"
      ]
    }
  ],
  "word": "-ница"
}