"transaction cost" meaning in English

{
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    {
      "form": "transaction costs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "transaction cost (plural transaction costs)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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        {
          "kind": "topical",
          "langcode": "en",
          "name": "Economics",
          "orig": "en:Economics",
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            "Social sciences",
            "Sciences",
            "Society",
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            "Fundamental"
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      ],
      "glosses": [
        "A cost in making any economic trade when participating in a market."
      ],
      "id": "en-transaction_cost-en-noun-A04XL-9m",
      "links": [
        [
          "economics",
          "economics"
        ]
      ],
      "raw_glosses": [
        "(economics) A cost in making any economic trade when participating in a market."
      ],
      "topics": [
        "economics",
        "sciences"
      ],
      "wikipedia": [
        "transaction cost"
      ]
    }
  ],
  "word": "transaction cost"
}

{
  "forms": [
    {
      "form": "transaction costs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "transaction cost (plural transaction costs)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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        "English countable nouns",
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        "en:Economics"
      ],
      "glosses": [
        "A cost in making any economic trade when participating in a market."
      ],
      "links": [
        [
          "economics",
          "economics"
        ]
      ],
      "raw_glosses": [
        "(economics) A cost in making any economic trade when participating in a market."
      ],
      "topics": [
        "economics",
        "sciences"
      ],
      "wikipedia": [
        "transaction cost"
      ]
    }
  ],
  "word": "transaction cost"
}