"γύμνασις" meaning in Grec ancien

{
  "categories": [
    {
      "kind": "other",
      "name": "Dérivations en grec ancien",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Mots en grec ancien suffixés avec -σις",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Noms communs en grec ancien",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Grec ancien",
      "orig": "grec ancien",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "Mot dérivé de γυμνάζω, gumnázô, avec le suffixe -σις, -sis."
  ],
  "lang": "Grec ancien",
  "lang_code": "grc",
  "pos": "noun",
  "pos_title": "Nom commun",
  "raw_tags": [
    "γύμνασις, gúmnasis"
  ],
  "related": [
    {
      "word": "γυμνασία"
    }
  ],
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Sports en grec ancien",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Wiktionnaire:Exemples manquants en grec ancien",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Exercice physique."
      ],
      "id": "fr-γύμνασις-grc-noun-8fGhDYoq",
      "topics": [
        "sports"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "γυμνάσιον"
    }
  ],
  "tags": [
    "feminine"
  ],
  "word": "γύμνασις"
}

{
  "categories": [
    "Dérivations en grec ancien",
    "Mots en grec ancien suffixés avec -σις",
    "Noms communs en grec ancien",
    "grec ancien"
  ],
  "etymology_texts": [
    "Mot dérivé de γυμνάζω, gumnázô, avec le suffixe -σις, -sis."
  ],
  "lang": "Grec ancien",
  "lang_code": "grc",
  "pos": "noun",
  "pos_title": "Nom commun",
  "raw_tags": [
    "γύμνασις, gúmnasis"
  ],
  "related": [
    {
      "word": "γυμνασία"
    }
  ],
  "senses": [
    {
      "categories": [
        "Sports en grec ancien",
        "Wiktionnaire:Exemples manquants en grec ancien"
      ],
      "glosses": [
        "Exercice physique."
      ],
      "topics": [
        "sports"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "γυμνάσιον"
    }
  ],
  "tags": [
    "feminine"
  ],
  "word": "γύμνασις"
}