"низчу" meaning in Nivkh

{
  "forms": [
    {
      "form": "nizț’u",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "niv",
        "2": "numeral",
        "head": "низчу"
      },
      "expansion": "низчу (nizț’u)",
      "name": "head"
    }
  ],
  "lang": "Nivkh",
  "lang_code": "niv",
  "pos": "num",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Nivkh entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Sakhalin Nivkh",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "one (for counting nets)"
      ],
      "id": "en-низчу-niv-num-Iuut0hGS",
      "links": [
        [
          "one",
          "one"
        ],
        [
          "net",
          "net"
        ]
      ],
      "qualifier": "cardinal numbers",
      "raw_glosses": [
        "(Sakhalin, cardinal numbers, dated) one (for counting nets)"
      ],
      "related": [
        {
          "roman": "nenŋ",
          "word": "ненӈ"
        },
        {
          "roman": "ņan",
          "word": "нян"
        },
        {
          "roman": "ņaqř",
          "word": "няӄр̌"
        },
        {
          "roman": "neo",
          "word": "нео"
        },
        {
          "roman": "ņvor",
          "word": "ньвор"
        }
      ],
      "tags": [
        "Sakhalin",
        "dated"
      ]
    }
  ],
  "word": "низчу"
}

{
  "forms": [
    {
      "form": "nizț’u",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "niv",
        "2": "numeral",
        "head": "низчу"
      },
      "expansion": "низчу (nizț’u)",
      "name": "head"
    }
  ],
  "lang": "Nivkh",
  "lang_code": "niv",
  "pos": "num",
  "related": [
    {
      "roman": "nenŋ",
      "word": "ненӈ"
    },
    {
      "roman": "ņan",
      "word": "нян"
    },
    {
      "roman": "ņaqř",
      "word": "няӄр̌"
    },
    {
      "roman": "neo",
      "word": "нео"
    },
    {
      "roman": "ņvor",
      "word": "ньвор"
    }
  ],
  "senses": [
    {
      "categories": [
        "Nivkh dated terms",
        "Nivkh entries with incorrect language header",
        "Nivkh lemmas",
        "Nivkh numerals",
        "Nivkh terms with redundant head parameter",
        "Sakhalin Nivkh"
      ],
      "glosses": [
        "one (for counting nets)"
      ],
      "links": [
        [
          "one",
          "one"
        ],
        [
          "net",
          "net"
        ]
      ],
      "qualifier": "cardinal numbers",
      "raw_glosses": [
        "(Sakhalin, cardinal numbers, dated) one (for counting nets)"
      ],
      "tags": [
        "Sakhalin",
        "dated"
      ]
    }
  ],
  "word": "низчу"
}