"мушки чвор" meaning in Serbo-Croatian

{
  "forms": [
    {
      "form": "muški čvor",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "g": "m"
      },
      "expansion": "мушки чвор m (Latin spelling muški čvor)",
      "name": "sh-noun"
    }
  ],
  "lang": "Serbo-Croatian",
  "lang_code": "sh",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Serbo-Croatian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "sh",
          "name": "Knots",
          "orig": "sh:Knots",
          "parents": [
            "Miscellaneous",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "sh",
          "name": "Nautical",
          "orig": "sh:Nautical",
          "parents": [
            "Transport",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "reef knot, square knot"
      ],
      "id": "en-мушки_чвор-sh-noun-9CqtzB2H",
      "links": [
        [
          "reef knot",
          "reef knot"
        ],
        [
          "square knot",
          "square knot"
        ]
      ],
      "related": [
        {
          "english": "granny knot",
          "word": "женски чвор"
        }
      ],
      "synonyms": [
        {
          "word": "амбулантни чвор"
        }
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "word": "мушки чвор"
}

{
  "forms": [
    {
      "form": "muški čvor",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "g": "m"
      },
      "expansion": "мушки чвор m (Latin spelling muški čvor)",
      "name": "sh-noun"
    }
  ],
  "lang": "Serbo-Croatian",
  "lang_code": "sh",
  "pos": "noun",
  "related": [
    {
      "english": "granny knot",
      "word": "женски чвор"
    }
  ],
  "senses": [
    {
      "categories": [
        "Serbo-Croatian entries with incorrect language header",
        "Serbo-Croatian lemmas",
        "Serbo-Croatian masculine nouns",
        "Serbo-Croatian multiword terms",
        "Serbo-Croatian nouns",
        "sh:Knots",
        "sh:Nautical"
      ],
      "glosses": [
        "reef knot, square knot"
      ],
      "links": [
        [
          "reef knot",
          "reef knot"
        ],
        [
          "square knot",
          "square knot"
        ]
      ],
      "synonyms": [
        {
          "word": "амбулантни чвор"
        }
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "word": "мушки чвор"
}