"Πειραεύς" meaning in Grec ancien

{
  "categories": [
    {
      "kind": "other",
      "name": "Noms propres en grec ancien",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Grec ancien",
      "orig": "grec ancien",
      "parents": [],
      "source": "w"
    }
  ],
  "forms": [
    {
      "form": "ὁ",
      "tags": [
        "singular",
        "nominative"
      ]
    },
    {
      "form": "Πειραεῦ",
      "tags": [
        "singular",
        "vocative"
      ]
    },
    {
      "form": "τὸν",
      "tags": [
        "singular",
        "accusative"
      ]
    },
    {
      "form": "Πειραέα",
      "tags": [
        "singular",
        "accusative"
      ]
    },
    {
      "form": "τοῦ",
      "tags": [
        "singular",
        "genitive"
      ]
    },
    {
      "form": "Πειραέως",
      "tags": [
        "singular",
        "genitive"
      ]
    },
    {
      "form": "τῷ",
      "tags": [
        "singular",
        "dative"
      ]
    },
    {
      "form": "Πειραεῖ",
      "tags": [
        "singular",
        "dative"
      ]
    }
  ],
  "lang": "Grec ancien",
  "lang_code": "grc",
  "pos": "name",
  "pos_title": "Nom propre",
  "raw_tags": [
    "Πειραεύς, Peiraeús"
  ],
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Wiktionnaire:Exemples manquants en grec ancien",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Forme alternative de Πειραιεύς."
      ],
      "id": "fr-Πειραεύς-grc-name-oyGERy7L"
    }
  ],
  "sounds": [
    {
      "ipa": "*\\peː.raː.ěu̯s\\"
    }
  ],
  "tags": [
    "masculine"
  ],
  "word": "Πειραεύς"
}

{
  "categories": [
    "Noms propres en grec ancien",
    "grec ancien"
  ],
  "forms": [
    {
      "form": "ὁ",
      "tags": [
        "singular",
        "nominative"
      ]
    },
    {
      "form": "Πειραεῦ",
      "tags": [
        "singular",
        "vocative"
      ]
    },
    {
      "form": "τὸν",
      "tags": [
        "singular",
        "accusative"
      ]
    },
    {
      "form": "Πειραέα",
      "tags": [
        "singular",
        "accusative"
      ]
    },
    {
      "form": "τοῦ",
      "tags": [
        "singular",
        "genitive"
      ]
    },
    {
      "form": "Πειραέως",
      "tags": [
        "singular",
        "genitive"
      ]
    },
    {
      "form": "τῷ",
      "tags": [
        "singular",
        "dative"
      ]
    },
    {
      "form": "Πειραεῖ",
      "tags": [
        "singular",
        "dative"
      ]
    }
  ],
  "lang": "Grec ancien",
  "lang_code": "grc",
  "pos": "name",
  "pos_title": "Nom propre",
  "raw_tags": [
    "Πειραεύς, Peiraeús"
  ],
  "senses": [
    {
      "categories": [
        "Wiktionnaire:Exemples manquants en grec ancien"
      ],
      "glosses": [
        "Forme alternative de Πειραιεύς."
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "*\\peː.raː.ěu̯s\\"
    }
  ],
  "tags": [
    "masculine"
  ],
  "word": "Πειραεύς"
}