"fiat currency" meaning in English

{
  "forms": [
    {
      "form": "fiat currencies",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "fiat currency (countable and uncountable, plural fiat currencies)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Economics",
          "orig": "en:Economics",
          "parents": [
            "Social sciences",
            "Sciences",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Money that is not backed by any commodity, but has value because people agree on its value, and often is established as legal tender by government fiat."
      ],
      "id": "en-fiat_currency-en-noun-A1fUMZbA",
      "links": [
        [
          "economics",
          "economics"
        ],
        [
          "Money",
          "money"
        ],
        [
          "legal tender",
          "legal tender"
        ],
        [
          "fiat",
          "fiat"
        ]
      ],
      "raw_glosses": [
        "(economics) Money that is not backed by any commodity, but has value because people agree on its value, and often is established as legal tender by government fiat."
      ],
      "synonyms": [
        {
          "word": "fiat money"
        }
      ],
      "tags": [
        "countable",
        "uncountable"
      ],
      "topics": [
        "economics",
        "science",
        "sciences"
      ],
      "wikipedia": [
        "fiat currency"
      ]
    }
  ],
  "word": "fiat currency"
}

{
  "forms": [
    {
      "form": "fiat currencies",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "fiat currency (countable and uncountable, plural fiat currencies)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English uncountable nouns",
        "en:Economics"
      ],
      "glosses": [
        "Money that is not backed by any commodity, but has value because people agree on its value, and often is established as legal tender by government fiat."
      ],
      "links": [
        [
          "economics",
          "economics"
        ],
        [
          "Money",
          "money"
        ],
        [
          "legal tender",
          "legal tender"
        ],
        [
          "fiat",
          "fiat"
        ]
      ],
      "raw_glosses": [
        "(economics) Money that is not backed by any commodity, but has value because people agree on its value, and often is established as legal tender by government fiat."
      ],
      "tags": [
        "countable",
        "uncountable"
      ],
      "topics": [
        "economics",
        "science",
        "sciences"
      ],
      "wikipedia": [
        "fiat currency"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "fiat money"
    }
  ],
  "word": "fiat currency"
}