"customary international law" meaning in English

{
  "forms": [
    {
      "form": "customary international laws",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "customary international law (plural customary international laws)",
      "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": [
            "Entries with incorrect language header",
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          "source": "w"
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          "source": "w"
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          "kind": "other",
          "name": "Mandarin terms with redundant transliterations",
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          "name": "Terms with Finnish translations",
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        },
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          "kind": "other",
          "name": "Terms with Mandarin translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "International law",
          "orig": "en:International law",
          "parents": [
            "Law",
            "Justice",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "The aspect of international law involving the principle of custom."
      ],
      "id": "en-customary_international_law-en-noun-52IFTBAB",
      "links": [
        [
          "aspect",
          "aspect"
        ],
        [
          "international law",
          "international law"
        ],
        [
          "principle",
          "principle"
        ],
        [
          "custom",
          "custom"
        ]
      ],
      "translations": [
        {
          "code": "cmn",
          "lang": "Chinese Mandarin",
          "roman": "guójì xíguànfǎ",
          "sense": "aspect of international law",
          "word": "國際習慣法 /国际习惯法"
        },
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "aspect of international law",
          "word": "kansainvälinen tapaoikeus"
        }
      ],
      "wikipedia": [
        "customary international law"
      ]
    }
  ],
  "word": "customary international law"
}

{
  "forms": [
    {
      "form": "customary international laws",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "customary international law (plural customary international laws)",
      "name": "en-noun"
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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        "English countable nouns",
        "English entries with incorrect language header",
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        "Mandarin terms with redundant transliterations",
        "Pages with 1 entry",
        "Pages with entries",
        "Terms with Finnish translations",
        "Terms with Mandarin translations",
        "en:International law"
      ],
      "glosses": [
        "The aspect of international law involving the principle of custom."
      ],
      "links": [
        [
          "aspect",
          "aspect"
        ],
        [
          "international law",
          "international law"
        ],
        [
          "principle",
          "principle"
        ],
        [
          "custom",
          "custom"
        ]
      ],
      "wikipedia": [
        "customary international law"
      ]
    }
  ],
  "translations": [
    {
      "code": "cmn",
      "lang": "Chinese Mandarin",
      "roman": "guójì xíguànfǎ",
      "sense": "aspect of international law",
      "word": "國際習慣法 /国际习惯法"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "aspect of international law",
      "word": "kansainvälinen tapaoikeus"
    }
  ],
  "word": "customary international law"
}