"сидух" meaning in Nivkh

{
  "etymology_templates": [
    {
      "args": {
        "1": "ain",
        "2": "シントコ"
      },
      "expansion": "Ainu シントコ",
      "name": "cog"
    }
  ],
  "etymology_text": "Loanword shared with Tungusic. Possibly related to Ainu シントコ.",
  "forms": [
    {
      "form": "sidux",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "niv",
        "2": "noun"
      },
      "expansion": "сидух (sidux)",
      "name": "head"
    }
  ],
  "lang": "Nivkh",
  "lang_code": "niv",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "East Sakhalin Nivkh",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Nivkh entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "barrel"
      ],
      "id": "en-сидух-niv-noun-6LvmQjpi",
      "links": [
        [
          "barrel",
          "barrel"
        ]
      ],
      "raw_glosses": [
        "(East Sakhalin) barrel"
      ],
      "related": [
        {
          "roman": "Nogliki",
          "word": "синтуӽ"
        }
      ],
      "tags": [
        "East",
        "Sakhalin"
      ]
    }
  ],
  "word": "сидух"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "ain",
        "2": "シントコ"
      },
      "expansion": "Ainu シントコ",
      "name": "cog"
    }
  ],
  "etymology_text": "Loanword shared with Tungusic. Possibly related to Ainu シントコ.",
  "forms": [
    {
      "form": "sidux",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "niv",
        "2": "noun"
      },
      "expansion": "сидух (sidux)",
      "name": "head"
    }
  ],
  "lang": "Nivkh",
  "lang_code": "niv",
  "pos": "noun",
  "related": [
    {
      "roman": "Nogliki",
      "word": "синтуӽ"
    }
  ],
  "senses": [
    {
      "categories": [
        "East Sakhalin Nivkh",
        "Nivkh entries with incorrect language header",
        "Nivkh lemmas",
        "Nivkh nouns",
        "Pages with 1 entry"
      ],
      "glosses": [
        "barrel"
      ],
      "links": [
        [
          "barrel",
          "barrel"
        ]
      ],
      "raw_glosses": [
        "(East Sakhalin) barrel"
      ],
      "tags": [
        "East",
        "Sakhalin"
      ]
    }
  ],
  "word": "сидух"
}