"mus" meaning in Northern Sami

{
  "forms": [
    {
      "form": "mūs",
      "tags": [
        "canonical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "se",
        "2": "pronoun form",
        "head": "mūs"
      },
      "expansion": "mūs",
      "name": "head"
    }
  ],
  "lang": "Northern Sami",
  "lang_code": "se",
  "pos": "pron",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Northern Sami entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "form_of": [
        {
          "word": "mun"
        }
      ],
      "glosses": [
        "locative of mun"
      ],
      "id": "en-mus-se-pron-DdoHPEwx",
      "links": [
        [
          "mun",
          "mun#Northern Sami"
        ]
      ],
      "tags": [
        "form-of",
        "locative"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈmuːs/",
      "tags": [
        "Kautokeino"
      ]
    }
  ],
  "word": "mus"
}

{
  "categories": [
    "Iu Mien terms in nonstandard scripts",
    "White Hmong entries with incorrect language header",
    "White Hmong interjections",
    "White Hmong lemmas",
    "White Hmong terms derived from Proto-Hmong",
    "White Hmong terms derived from Proto-Hmong-Mien",
    "White Hmong terms inherited from Proto-Hmong",
    "White Hmong terms inherited from Proto-Hmong-Mien",
    "White Hmong terms with IPA pronunciation",
    "White Hmong verbs"
  ],
  "forms": [
    {
      "form": "mūs",
      "tags": [
        "canonical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "se",
        "2": "pronoun form",
        "head": "mūs"
      },
      "expansion": "mūs",
      "name": "head"
    }
  ],
  "lang": "Northern Sami",
  "lang_code": "se",
  "pos": "pron",
  "senses": [
    {
      "categories": [
        "Northern Sami 1-syllable words",
        "Northern Sami entries with incorrect language header",
        "Northern Sami non-lemma forms",
        "Northern Sami pronoun forms",
        "Northern Sami terms with IPA pronunciation"
      ],
      "form_of": [
        {
          "word": "mun"
        }
      ],
      "glosses": [
        "locative of mun"
      ],
      "links": [
        [
          "mun",
          "mun#Northern Sami"
        ]
      ],
      "tags": [
        "form-of",
        "locative"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈmuːs/",
      "tags": [
        "Kautokeino"
      ]
    }
  ],
  "word": "mus"
}