"По" meaning in Russian

{
  "etymology_number": 1,
  "forms": [
    {
      "form": "Po",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "",
        "2": "n-in",
        "3": "-"
      },
      "expansion": "По • (Po) n inan (indeclinable)",
      "name": "ru-proper noun"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "name",
  "senses": [
    {
      "categories": [
        {
          "kind": "place",
          "langcode": "ru",
          "name": "Places in Italy",
          "orig": "ru:Places in Italy",
          "parents": [
            "Places",
            "Names",
            "All topics",
            "Proper nouns",
            "Terms by semantic function",
            "Fundamental",
            "Nouns",
            "Lemmas"
          ],
          "source": "w"
        },
        {
          "kind": "place",
          "langcode": "ru",
          "name": "Rivers in Italy",
          "orig": "ru:Rivers in Italy",
          "parents": [
            "Rivers",
            "Places",
            "Bodies of water",
            "Names",
            "Landforms",
            "Water",
            "All topics",
            "Proper nouns",
            "Terms by semantic function",
            "Earth",
            "Liquids",
            "Fundamental",
            "Nouns",
            "Nature",
            "Matter",
            "Lemmas",
            "Chemistry",
            "Sciences"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Po (a river in Italy)"
      ],
      "id": "en-По-ru-name-ZrtrUV0J",
      "links": [
        [
          "Po",
          "Po#English"
        ],
        [
          "Italy",
          "Italy#English"
        ]
      ],
      "tags": [
        "indeclinable"
      ]
    }
  ],
  "word": "По"
}

{
  "etymology_number": 2,
  "forms": [
    {
      "form": "Po",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "",
        "2": "m-an",
        "3": "-"
      },
      "expansion": "По • (Po) m anim (indeclinable)",
      "name": "ru-proper noun"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "name",
  "senses": [
    {
      "categories": [
        {
          "_dis": "14 86",
          "kind": "other",
          "name": "Pages with 3 entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "9 91",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "0 100",
          "kind": "other",
          "name": "Russian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "Poe (surname, especially of Edgar Allan Poe, American writer)"
      ],
      "id": "en-По-ru-name-6UcY35qN",
      "links": [
        [
          "Poe",
          "Poe"
        ],
        [
          "Edgar Allan Poe",
          "w:Edgar Allan Poe"
        ]
      ],
      "tags": [
        "indeclinable"
      ]
    }
  ],
  "word": "По"
}

{
  "categories": [
    "Pages with 3 entries",
    "Pages with entries",
    "Russian animate nouns",
    "Russian entries with incorrect language header",
    "Russian inanimate nouns",
    "Russian indeclinable nouns",
    "Russian lemmas",
    "Russian masculine nouns",
    "Russian neuter nouns",
    "Russian proper nouns",
    "Russian terms with redundant head parameter"
  ],
  "etymology_number": 1,
  "forms": [
    {
      "form": "Po",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "",
        "2": "n-in",
        "3": "-"
      },
      "expansion": "По • (Po) n inan (indeclinable)",
      "name": "ru-proper noun"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "name",
  "senses": [
    {
      "categories": [
        "ru:Places in Italy",
        "ru:Rivers in Italy"
      ],
      "glosses": [
        "Po (a river in Italy)"
      ],
      "links": [
        [
          "Po",
          "Po#English"
        ],
        [
          "Italy",
          "Italy#English"
        ]
      ],
      "tags": [
        "indeclinable"
      ]
    }
  ],
  "word": "По"
}

{
  "categories": [
    "Pages with 3 entries",
    "Pages with entries",
    "Russian animate nouns",
    "Russian entries with incorrect language header",
    "Russian indeclinable nouns",
    "Russian lemmas",
    "Russian masculine nouns",
    "Russian proper nouns",
    "Russian terms with redundant head parameter"
  ],
  "etymology_number": 2,
  "forms": [
    {
      "form": "Po",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "",
        "2": "m-an",
        "3": "-"
      },
      "expansion": "По • (Po) m anim (indeclinable)",
      "name": "ru-proper noun"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "name",
  "senses": [
    {
      "glosses": [
        "Poe (surname, especially of Edgar Allan Poe, American writer)"
      ],
      "links": [
        [
          "Poe",
          "Poe"
        ],
        [
          "Edgar Allan Poe",
          "w:Edgar Allan Poe"
        ]
      ],
      "tags": [
        "indeclinable"
      ]
    }
  ],
  "word": "По"
}