"ją" meaning in Polonais

{
  "categories": [
    {
      "kind": "other",
      "name": "Formes de pronoms personnels en polonais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Polonais",
      "orig": "polonais",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "Polonais",
  "lang_code": "pl",
  "pos": "pron",
  "pos_title": "Forme de pronom personnel",
  "senses": [
    {
      "form_of": [
        {
          "word": "ona"
        }
      ],
      "glosses": [
        "Accusatif de ona."
      ],
      "id": "fr-ją-pl-pron-1mS3LO0T"
    }
  ],
  "sounds": [
    {
      "ipa": "\\jɔw̃\\"
    }
  ],
  "tags": [
    "form-of",
    "person"
  ],
  "word": "ją"
}

{
  "categories": [
    "Formes de pronoms personnels en polonais",
    "polonais"
  ],
  "lang": "Polonais",
  "lang_code": "pl",
  "pos": "pron",
  "pos_title": "Forme de pronom personnel",
  "senses": [
    {
      "form_of": [
        {
          "word": "ona"
        }
      ],
      "glosses": [
        "Accusatif de ona."
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\jɔw̃\\"
    }
  ],
  "tags": [
    "form-of",
    "person"
  ],
  "word": "ją"
}