"permutation" meaning in French

{
  "forms": [
    {
      "form": "permutation"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "noun",
  "related": [
    {
      "word": "permuter"
    }
  ],
  "senses": [
    {
      "glosses": [
        "η μεταλλαγή, η αλλαγή θέσης με κάτι άλλο"
      ],
      "id": "el-permutation-fr-noun-ffBVGBFE"
    },
    {
      "categories": [
        {
          "kind": "other",
          "name": "Μαθηματικά (γαλλικά)",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "μετάθεση"
      ],
      "id": "el-permutation-fr-noun-XnyF4WHn",
      "raw_tags": [
        "μαθηματικά"
      ]
    }
  ],
  "word": "permutation"
}

{
  "forms": [
    {
      "form": "permutation"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "noun",
  "related": [
    {
      "word": "permuter"
    }
  ],
  "senses": [
    {
      "glosses": [
        "η μεταλλαγή, η αλλαγή θέσης με κάτι άλλο"
      ]
    },
    {
      "categories": [
        "Μαθηματικά (γαλλικά)"
      ],
      "glosses": [
        "μετάθεση"
      ],
      "raw_tags": [
        "μαθηματικά"
      ]
    }
  ],
  "word": "permutation"
}