"variable variable" meaning in Anglais

{
  "categories": [
    {
      "kind": "other",
      "name": "Locutions nominales en anglais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Mots en français formés par le redoublement d’une suite de lettres",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Anglais",
      "orig": "anglais",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "De l’adjectif variable et du nom variable."
  ],
  "forms": [
    {
      "form": "variable variables",
      "ipas": [
        "\\ˌvɛɹ.i.ə.bl̩ ˈvɛɹ.i.ə.bl̩z\\",
        "\\ˌvɛə.ɹɪə.bl̩ ˈvɛə.ɹɪə.bl̩z\\"
      ],
      "tags": [
        "plural"
      ]
    }
  ],
  "lang": "Anglais",
  "lang_code": "en",
  "pos": "noun",
  "pos_title": "Locution nominale",
  "related": [
    {
      "word": "pointer"
    }
  ],
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Lexique en anglais de la programmation",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Variable variable."
      ],
      "id": "fr-variable_variable-en-noun-YJS9GJNO",
      "raw_tags": [
        "PHP"
      ],
      "topics": [
        "programming"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\ˌvɛɹ.i.ə.bl̩ ˈvɛɹ.i.ə.bl̩\\"
    },
    {
      "ipa": "\\ˌvæɹ.i.ə.bl̩ ˈvæɹ.i.ə.bl̩\\",
      "raw_tags": [
        "États-Unis"
      ]
    },
    {
      "ipa": "\\ˌvɛə.ɹɪə.bl̩ ˈvɛə.ɹɪə.bl̩\\",
      "raw_tags": [
        "Royaume-Uni"
      ]
    }
  ],
  "word": "variable variable"
}

{
  "categories": [
    "Locutions nominales en anglais",
    "Mots en français formés par le redoublement d’une suite de lettres",
    "anglais"
  ],
  "etymology_texts": [
    "De l’adjectif variable et du nom variable."
  ],
  "forms": [
    {
      "form": "variable variables",
      "ipas": [
        "\\ˌvɛɹ.i.ə.bl̩ ˈvɛɹ.i.ə.bl̩z\\",
        "\\ˌvɛə.ɹɪə.bl̩ ˈvɛə.ɹɪə.bl̩z\\"
      ],
      "tags": [
        "plural"
      ]
    }
  ],
  "lang": "Anglais",
  "lang_code": "en",
  "pos": "noun",
  "pos_title": "Locution nominale",
  "related": [
    {
      "word": "pointer"
    }
  ],
  "senses": [
    {
      "categories": [
        "Lexique en anglais de la programmation"
      ],
      "glosses": [
        "Variable variable."
      ],
      "raw_tags": [
        "PHP"
      ],
      "topics": [
        "programming"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\ˌvɛɹ.i.ə.bl̩ ˈvɛɹ.i.ə.bl̩\\"
    },
    {
      "ipa": "\\ˌvæɹ.i.ə.bl̩ ˈvæɹ.i.ə.bl̩\\",
      "raw_tags": [
        "États-Unis"
      ]
    },
    {
      "ipa": "\\ˌvɛə.ɹɪə.bl̩ ˈvɛə.ɹɪə.bl̩\\",
      "raw_tags": [
        "Royaume-Uni"
      ]
    }
  ],
  "word": "variable variable"
}