"nus" meaning in White Hmong

{
  "etymology_templates": [
    {
      "args": {
        "1": "mww",
        "2": "hmx-pro",
        "3": "*neuŋX",
        "t": "mother's brother"
      },
      "expansion": "Proto-Hmong-Mien *neuŋX (“mother's brother”)",
      "name": "inh"
    }
  ],
  "etymology_text": "From Proto-Hmong-Mien *neuŋX (“mother's brother”).",
  "head_templates": [
    {
      "args": {
        "1": "mww",
        "2": "noun"
      },
      "expansion": "nus",
      "name": "head"
    }
  ],
  "lang": "White Hmong",
  "lang_code": "mww",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 14 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "White Hmong entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "brother (as called by his sister)"
      ],
      "id": "en-nus-mww-noun-uAMgHbP2",
      "links": [
        [
          "brother",
          "brother"
        ],
        [
          "called",
          "called"
        ],
        [
          "sister",
          "sister"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/nu˩/"
    }
  ],
  "word": "nus"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "mww",
        "2": "hmx-pro",
        "3": "*neuŋX",
        "t": "mother's brother"
      },
      "expansion": "Proto-Hmong-Mien *neuŋX (“mother's brother”)",
      "name": "inh"
    }
  ],
  "etymology_text": "From Proto-Hmong-Mien *neuŋX (“mother's brother”).",
  "head_templates": [
    {
      "args": {
        "1": "mww",
        "2": "noun"
      },
      "expansion": "nus",
      "name": "head"
    }
  ],
  "lang": "White Hmong",
  "lang_code": "mww",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Pages with 14 entries",
        "Pages with entries",
        "White Hmong entries with incorrect language header",
        "White Hmong lemmas",
        "White Hmong nouns",
        "White Hmong terms derived from Proto-Hmong-Mien",
        "White Hmong terms inherited from Proto-Hmong-Mien",
        "White Hmong terms with IPA pronunciation"
      ],
      "glosses": [
        "brother (as called by his sister)"
      ],
      "links": [
        [
          "brother",
          "brother"
        ],
        [
          "called",
          "called"
        ],
        [
          "sister",
          "sister"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/nu˩/"
    }
  ],
  "word": "nus"
}