"pí" meaning in Czech

{
  "etymology_number": 1,
  "head_templates": [
    {
      "args": {
        "1": "n",
        "indecl": "1"
      },
      "expansion": "pí n (indeclinable)",
      "name": "cs-noun"
    }
  ],
  "lang": "Czech",
  "lang_code": "cs",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "88 5 7",
          "kind": "other",
          "name": "Czech entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "93 3 4",
          "kind": "topical",
          "langcode": "cs",
          "name": "Greek letter names",
          "orig": "cs:Greek letter names",
          "parents": [
            "Letter names",
            "Letters, symbols, and punctuation",
            "Names",
            "Orthography",
            "All topics",
            "Proper nouns",
            "Terms by semantic function",
            "Writing",
            "Fundamental",
            "Nouns",
            "Human behaviour",
            "Language",
            "Lemmas",
            "Human",
            "Communication"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "pi (Greek letter)"
      ],
      "id": "en-pí-cs-noun-jqAgmFHL",
      "links": [
        [
          "pi",
          "pi"
        ]
      ],
      "tags": [
        "indeclinable",
        "neuter"
      ]
    },
    {
      "glosses": [
        "pi (the ratio of the circumference of a Euclidean circle to its diameter)"
      ],
      "id": "en-pí-cs-noun-Vgtov0PV",
      "links": [
        [
          "pi",
          "pi"
        ]
      ],
      "tags": [
        "indeclinable",
        "neuter"
      ]
    }
  ],
  "word": "pí"
}

{
  "etymology_number": 2,
  "head_templates": [
    {
      "args": {
        "1": "f",
        "indecl": "1"
      },
      "expansion": "pí f (indeclinable)",
      "name": "cs-noun"
    }
  ],
  "lang": "Czech",
  "lang_code": "cs",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "paní"
        }
      ],
      "categories": [],
      "glosses": [
        "Abbreviation of paní."
      ],
      "id": "en-pí-cs-noun-Yk2jBzVm",
      "links": [
        [
          "paní",
          "paní#Czech"
        ]
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "feminine",
        "indeclinable"
      ]
    }
  ],
  "word": "pí"
}

{
  "categories": [
    "Czech entries with incorrect language header",
    "Czech feminine nouns",
    "Czech indeclinable nouns",
    "Czech lemmas",
    "Czech neuter nouns",
    "Czech nouns",
    "Hanyu Pinyin",
    "cs:Greek letter names"
  ],
  "etymology_number": 1,
  "head_templates": [
    {
      "args": {
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      },
      "expansion": "pí n (indeclinable)",
      "name": "cs-noun"
    }
  ],
  "lang": "Czech",
  "lang_code": "cs",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "pi (Greek letter)"
      ],
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          "pi",
          "pi"
        ]
      ],
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        "indeclinable",
        "neuter"
      ]
    },
    {
      "glosses": [
        "pi (the ratio of the circumference of a Euclidean circle to its diameter)"
      ],
      "links": [
        [
          "pi",
          "pi"
        ]
      ],
      "tags": [
        "indeclinable",
        "neuter"
      ]
    }
  ],
  "word": "pí"
}

{
  "categories": [
    "Czech entries with incorrect language header",
    "Czech feminine nouns",
    "Czech indeclinable nouns",
    "Czech lemmas",
    "Czech nouns",
    "Hanyu Pinyin",
    "cs:Greek letter names"
  ],
  "etymology_number": 2,
  "head_templates": [
    {
      "args": {
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        "indecl": "1"
      },
      "expansion": "pí f (indeclinable)",
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    }
  ],
  "lang": "Czech",
  "lang_code": "cs",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "paní"
        }
      ],
      "categories": [
        "Czech abbreviations"
      ],
      "glosses": [
        "Abbreviation of paní."
      ],
      "links": [
        [
          "paní",
          "paní#Czech"
        ]
      ],
      "tags": [
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        "alt-of",
        "feminine",
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      ]
    }
  ],
  "word": "pí"
}