"alter ego" meaning in Polish

{
  "etymology_templates": [
    {
      "args": {
        "1": "pl",
        "2": "la",
        "3": "alter egō̆"
      },
      "expansion": "Learned borrowing from Latin alter egō̆",
      "name": "lbor"
    }
  ],
  "etymology_text": "Learned borrowing from Latin alter egō̆.",
  "head_templates": [
    {
      "args": {
        "1": "n",
        "head": "alter ego",
        "indecl": "1"
      },
      "expansion": "alter ego n (indeclinable)",
      "name": "pl-noun"
    }
  ],
  "lang": "Polish",
  "lang_code": "pl",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 5 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Polish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "pl",
          "name": "Psychiatry",
          "orig": "pl:Psychiatry",
          "parents": [
            "Medicine",
            "Biology",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "pl",
          "name": "Psychology",
          "orig": "pl:Psychology",
          "parents": [
            "Social sciences",
            "Sciences",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "alter ego (individual's alternate personality or persona; another self)"
      ],
      "id": "en-alter_ego-pl-noun-V~9PWVvP",
      "links": [
        [
          "psychology",
          "psychology"
        ],
        [
          "psychiatry",
          "psychiatry"
        ],
        [
          "alter ego",
          "alter ego#English"
        ]
      ],
      "raw_glosses": [
        "(psychology, psychiatry) alter ego (individual's alternate personality or persona; another self)"
      ],
      "synonyms": [
        {
          "word": "drugie ja"
        }
      ],
      "tags": [
        "indeclinable",
        "neuter"
      ],
      "topics": [
        "human-sciences",
        "medicine",
        "psychiatry",
        "psychology",
        "sciences"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈal.tɛr ˈɛ.ɡɔ/"
    },
    {
      "rhymes": "-ɛɡɔ"
    }
  ],
  "word": "alter ego"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "pl",
        "2": "la",
        "3": "alter egō̆"
      },
      "expansion": "Learned borrowing from Latin alter egō̆",
      "name": "lbor"
    }
  ],
  "etymology_text": "Learned borrowing from Latin alter egō̆.",
  "head_templates": [
    {
      "args": {
        "1": "n",
        "head": "alter ego",
        "indecl": "1"
      },
      "expansion": "alter ego n (indeclinable)",
      "name": "pl-noun"
    }
  ],
  "lang": "Polish",
  "lang_code": "pl",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Pages with 5 entries",
        "Polish entries with incorrect language header",
        "Polish indeclinable nouns",
        "Polish learned borrowings from Latin",
        "Polish lemmas",
        "Polish multiword terms",
        "Polish neuter nouns",
        "Polish nouns",
        "Polish terms borrowed from Latin",
        "Polish terms derived from Latin",
        "Polish terms with IPA pronunciation",
        "Polish terms with audio links",
        "Rhymes:Polish/ɛɡɔ",
        "pl:Psychiatry",
        "pl:Psychology"
      ],
      "glosses": [
        "alter ego (individual's alternate personality or persona; another self)"
      ],
      "links": [
        [
          "psychology",
          "psychology"
        ],
        [
          "psychiatry",
          "psychiatry"
        ],
        [
          "alter ego",
          "alter ego#English"
        ]
      ],
      "raw_glosses": [
        "(psychology, psychiatry) alter ego (individual's alternate personality or persona; another self)"
      ],
      "synonyms": [
        {
          "word": "drugie ja"
        }
      ],
      "tags": [
        "indeclinable",
        "neuter"
      ],
      "topics": [
        "human-sciences",
        "medicine",
        "psychiatry",
        "psychology",
        "sciences"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈal.tɛr ˈɛ.ɡɔ/"
    },
    {
      "rhymes": "-ɛɡɔ"
    }
  ],
  "word": "alter ego"
}