"free variation" meaning in All languages combined

{
  "head_templates": [
    {
      "args": {
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      "expansion": "free variation (uncountable)",
      "name": "en-noun"
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
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          "name": "Terms with Vietnamese translations",
          "parents": [],
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          "kind": "other",
          "langcode": "en",
          "name": "Linguistics",
          "orig": "en:Linguistics",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "The situation where two or more forms appear in the same environment without a change in meaning, and without either one being considered incorrect."
      ],
      "id": "en-free_variation-en-noun-5DmIp8QU",
      "links": [
        [
          "linguistics",
          "linguistics"
        ]
      ],
      "raw_glosses": [
        "(linguistics) The situation where two or more forms appear in the same environment without a change in meaning, and without either one being considered incorrect."
      ],
      "related": [
        {
          "word": "allophony"
        },
        {
          "word": "complementary distribution"
        },
        {
          "word": "distinction without a difference"
        },
        {
          "word": "potayto, potahto"
        }
      ],
      "tags": [
        "uncountable"
      ],
      "topics": [
        "human-sciences",
        "linguistics",
        "sciences"
      ],
      "translations": [
        {
          "code": "pl",
          "lang": "Polish",
          "lang_code": "pl",
          "sense": "situation where two or more forms appear in the same environment without a change in meaning, and without either one being considered incorrect",
          "tags": [
            "feminine"
          ],
          "word": "wariancja swobodna"
        },
        {
          "code": "vi",
          "lang": "Vietnamese",
          "lang_code": "vi",
          "sense": "situation where two or more forms appear in the same environment without a change in meaning, and without either one being considered incorrect",
          "word": "biến thể tự do"
        }
      ]
    }
  ],
  "word": "free variation"
}

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      "expansion": "free variation (uncountable)",
      "name": "en-noun"
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "allophony"
    },
    {
      "word": "complementary distribution"
    },
    {
      "word": "distinction without a difference"
    },
    {
      "word": "potayto, potahto"
    }
  ],
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English uncountable nouns",
        "Entries with translation boxes",
        "Pages with 1 entry",
        "Pages with entries",
        "Terms with Polish translations",
        "Terms with Vietnamese translations",
        "en:Linguistics"
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      "glosses": [
        "The situation where two or more forms appear in the same environment without a change in meaning, and without either one being considered incorrect."
      ],
      "links": [
        [
          "linguistics",
          "linguistics"
        ]
      ],
      "raw_glosses": [
        "(linguistics) The situation where two or more forms appear in the same environment without a change in meaning, and without either one being considered incorrect."
      ],
      "tags": [
        "uncountable"
      ],
      "topics": [
        "human-sciences",
        "linguistics",
        "sciences"
      ]
    }
  ],
  "translations": [
    {
      "code": "pl",
      "lang": "Polish",
      "lang_code": "pl",
      "sense": "situation where two or more forms appear in the same environment without a change in meaning, and without either one being considered incorrect",
      "tags": [
        "feminine"
      ],
      "word": "wariancja swobodna"
    },
    {
      "code": "vi",
      "lang": "Vietnamese",
      "lang_code": "vi",
      "sense": "situation where two or more forms appear in the same environment without a change in meaning, and without either one being considered incorrect",
      "word": "biến thể tự do"
    }
  ],
  "word": "free variation"
}