"о." meaning in Serbo-Croatian

{
  "etymology_templates": [
    {
      "args": {
        "1": "sh",
        "2": "острво"
      },
      "expansion": "Abbreviation of острво.",
      "name": "abbreviation of"
    }
  ],
  "etymology_text": "Abbreviation of острво.",
  "forms": [
    {
      "form": "o.",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "sh",
        "2": "noun",
        "3": "Roman spelling",
        "4": "o."
      },
      "expansion": "о. (Roman spelling o.)",
      "name": "head"
    }
  ],
  "lang": "Serbo-Croatian",
  "lang_code": "sh",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 2 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 links with manual fragments",
          "parents": [
            "Links with manual fragments",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Serbo-Croatian links with redundant alt parameters",
          "parents": [
            "Links with redundant alt parameters",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Serbo-Croatian links with redundant wikilinks",
          "parents": [
            "Links with redundant wikilinks",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "island"
      ],
      "id": "en-о.-sh-noun-KM0sXBXR",
      "links": [
        [
          "island",
          "island"
        ]
      ]
    }
  ],
  "word": "о."
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "sh",
        "2": "острво"
      },
      "expansion": "Abbreviation of острво.",
      "name": "abbreviation of"
    }
  ],
  "etymology_text": "Abbreviation of острво.",
  "forms": [
    {
      "form": "o.",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "sh",
        "2": "noun",
        "3": "Roman spelling",
        "4": "o."
      },
      "expansion": "о. (Roman spelling o.)",
      "name": "head"
    }
  ],
  "lang": "Serbo-Croatian",
  "lang_code": "sh",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Pages with 2 entries",
        "Pages with entries",
        "Serbo-Croatian abbreviations",
        "Serbo-Croatian entries with incorrect language header",
        "Serbo-Croatian lemmas",
        "Serbo-Croatian links with manual fragments",
        "Serbo-Croatian links with redundant alt parameters",
        "Serbo-Croatian links with redundant wikilinks",
        "Serbo-Croatian nouns",
        "Serbo-Croatian terms spelled with ."
      ],
      "glosses": [
        "island"
      ],
      "links": [
        [
          "island",
          "island"
        ]
      ]
    }
  ],
  "word": "о."
}