"sinussa" meaning in Finnish

{
  "head_templates": [
    {
      "args": {
        "1": "fi",
        "2": "pronoun form"
      },
      "expansion": "sinussa",
      "name": "head"
    }
  ],
  "lang": "Finnish",
  "lang_code": "fi",
  "pos": "pron",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Finnish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "form_of": [
        {
          "word": "sinä"
        }
      ],
      "glosses": [
        "inessive of sinä"
      ],
      "id": "en-sinussa-fi-pron-c4VjgVmz",
      "links": [
        [
          "sinä",
          "sinä#Finnish"
        ]
      ],
      "raw_glosses": [
        "(personal) inessive of sinä"
      ],
      "tags": [
        "form-of",
        "inessive",
        "personal"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈsinusːɑ/"
    },
    {
      "ipa": "[ˈs̠inus̠ːɑ̝]"
    },
    {
      "rhymes": "-inusːɑ"
    }
  ],
  "word": "sinussa"
}

{
  "head_templates": [
    {
      "args": {
        "1": "fi",
        "2": "pronoun form"
      },
      "expansion": "sinussa",
      "name": "head"
    }
  ],
  "lang": "Finnish",
  "lang_code": "fi",
  "pos": "pron",
  "senses": [
    {
      "categories": [
        "Finnish 3-syllable words",
        "Finnish entries with incorrect language header",
        "Finnish non-lemma forms",
        "Finnish pronoun forms",
        "Finnish terms with IPA pronunciation",
        "Rhymes:Finnish/inusːɑ",
        "Rhymes:Finnish/inusːɑ/3 syllables"
      ],
      "form_of": [
        {
          "word": "sinä"
        }
      ],
      "glosses": [
        "inessive of sinä"
      ],
      "links": [
        [
          "sinä",
          "sinä#Finnish"
        ]
      ],
      "raw_glosses": [
        "(personal) inessive of sinä"
      ],
      "tags": [
        "form-of",
        "inessive",
        "personal"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈsinusːɑ/"
    },
    {
      "ipa": "[ˈs̠inus̠ːɑ̝]"
    },
    {
      "rhymes": "-inusːɑ"
    }
  ],
  "word": "sinussa"
}