"stopper knot" meaning in English

{
  "forms": [
    {
      "form": "stopper knots",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "stopper knot (plural stopper knots)",
      "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"
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          "source": "w"
        },
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          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Knots",
          "orig": "en:Knots",
          "parents": [
            "Fasteners",
            "Tools",
            "Technology",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Nautical",
          "orig": "en:Nautical",
          "parents": [
            "Transport",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "derived": [
        {
          "word": "Ashley's stopper knot"
        }
      ],
      "glosses": [
        "A knot placed in a rope either to prevent the end from fraying, or to prevent it from passing through a hole."
      ],
      "id": "en-stopper_knot-en-noun-tMiZHv1t",
      "links": [
        [
          "nautical",
          "nautical"
        ],
        [
          "rope",
          "rope"
        ]
      ],
      "raw_glosses": [
        "(nautical) A knot placed in a rope either to prevent the end from fraying, or to prevent it from passing through a hole."
      ],
      "topics": [
        "nautical",
        "transport"
      ],
      "translations": [
        {
          "code": "fr",
          "lang": "French",
          "sense": "knot to prevent a rope passing through a hole",
          "tags": [
            "masculine"
          ],
          "word": "nœud d’arrêt"
        },
        {
          "code": "it",
          "lang": "Italian",
          "sense": "knot to prevent a rope passing through a hole",
          "tags": [
            "feminine"
          ],
          "word": "gassa"
        }
      ],
      "wikipedia": [
        "stopper (knot)"
      ]
    }
  ],
  "word": "stopper knot"
}

{
  "derived": [
    {
      "word": "Ashley's stopper knot"
    }
  ],
  "forms": [
    {
      "form": "stopper knots",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "stopper knot (plural stopper knots)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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        "English countable nouns",
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        "en:Knots",
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      ],
      "glosses": [
        "A knot placed in a rope either to prevent the end from fraying, or to prevent it from passing through a hole."
      ],
      "links": [
        [
          "nautical",
          "nautical"
        ],
        [
          "rope",
          "rope"
        ]
      ],
      "raw_glosses": [
        "(nautical) A knot placed in a rope either to prevent the end from fraying, or to prevent it from passing through a hole."
      ],
      "topics": [
        "nautical",
        "transport"
      ],
      "wikipedia": [
        "stopper (knot)"
      ]
    }
  ],
  "translations": [
    {
      "code": "fr",
      "lang": "French",
      "sense": "knot to prevent a rope passing through a hole",
      "tags": [
        "masculine"
      ],
      "word": "nœud d’arrêt"
    },
    {
      "code": "it",
      "lang": "Italian",
      "sense": "knot to prevent a rope passing through a hole",
      "tags": [
        "feminine"
      ],
      "word": "gassa"
    }
  ],
  "word": "stopper knot"
}