"πυραί" meaning in Altgriechisch

{
  "categories": [
    {
      "kind": "other",
      "name": "Altgriechisch",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Anagramm sortiert (Altgriechisch)",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Deklinierte Form (Altgriechisch)",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Rückläufige Wörterliste (Altgriechisch)",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Siehe auch",
      "orig": "siehe auch",
      "parents": [],
      "source": "w"
    }
  ],
  "hyphenation": "πυ·ραί",
  "lang": "Altgriechisch",
  "lang_code": "grc",
  "pos": "noun",
  "senses": [
    {
      "form_of": [
        {
          "word": "πυρά"
        }
      ],
      "glosses": [
        "Nominativ Plural des Substantivs πυρά"
      ],
      "id": "de-πυραί-grc-noun-04JDYWx4",
      "tags": [
        "nominative",
        "plural"
      ]
    },
    {
      "form_of": [
        {
          "word": "πυρά"
        }
      ],
      "glosses": [
        "Vokativ Plural des Substantivs πυρά"
      ],
      "id": "de-πυραί-grc-noun-MS5Iwqy~",
      "tags": [
        "plural"
      ]
    }
  ],
  "tags": [
    "form-of"
  ],
  "word": "πυραί"
}

{
  "categories": [
    "Altgriechisch",
    "Anagramm sortiert (Altgriechisch)",
    "Deklinierte Form (Altgriechisch)",
    "Rückläufige Wörterliste (Altgriechisch)",
    "siehe auch"
  ],
  "hyphenation": "πυ·ραί",
  "lang": "Altgriechisch",
  "lang_code": "grc",
  "pos": "noun",
  "senses": [
    {
      "form_of": [
        {
          "word": "πυρά"
        }
      ],
      "glosses": [
        "Nominativ Plural des Substantivs πυρά"
      ],
      "tags": [
        "nominative",
        "plural"
      ]
    },
    {
      "form_of": [
        {
          "word": "πυρά"
        }
      ],
      "glosses": [
        "Vokativ Plural des Substantivs πυρά"
      ],
      "tags": [
        "plural"
      ]
    }
  ],
  "tags": [
    "form-of"
  ],
  "word": "πυραί"
}