"sú" meaning in Icelandic

{
  "etymology_number": 1,
  "head_templates": [
    {
      "args": {
        "1": "is",
        "2": "noun form"
      },
      "expansion": "sú",
      "name": "head"
    }
  ],
  "lang": "Icelandic",
  "lang_code": "is",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "53 47",
          "kind": "other",
          "name": "Icelandic entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "form_of": [
        {
          "word": "sýr"
        }
      ],
      "glosses": [
        "indefinite accusative/dative singular of sýr"
      ],
      "id": "en-sú-is-noun-PCH3n8D-",
      "links": [
        [
          "sýr",
          "sýr#Icelandic"
        ]
      ],
      "tags": [
        "accusative",
        "dative",
        "form-of",
        "indefinite",
        "singular"
      ]
    }
  ],
  "word": "sú"
}

{
  "etymology_number": 2,
  "head_templates": [
    {
      "args": {
        "1": "is",
        "2": "pronoun form"
      },
      "expansion": "sú",
      "name": "head"
    }
  ],
  "lang": "Icelandic",
  "lang_code": "is",
  "pos": "pron",
  "senses": [
    {
      "categories": [
        {
          "_dis": "53 47",
          "kind": "other",
          "name": "Icelandic entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "form_of": [
        {
          "extra": "that",
          "word": "sá"
        }
      ],
      "glosses": [
        "nominative feminine singular of sá (“that”)"
      ],
      "id": "en-sú-is-pron-wj7IGRjB",
      "links": [
        [
          "sá",
          "sá#Icelandic"
        ]
      ],
      "tags": [
        "feminine",
        "form-of",
        "nominative",
        "singular"
      ]
    }
  ],
  "word": "sú"
}

{
  "categories": [
    "Icelandic entries with incorrect language header",
    "Icelandic non-lemma forms",
    "Icelandic noun forms",
    "Icelandic pronoun forms",
    "Pages with 10 entries",
    "Pages with entries",
    "vi:Malpighiales order plants"
  ],
  "etymology_number": 1,
  "head_templates": [
    {
      "args": {
        "1": "is",
        "2": "noun form"
      },
      "expansion": "sú",
      "name": "head"
    }
  ],
  "lang": "Icelandic",
  "lang_code": "is",
  "pos": "noun",
  "senses": [
    {
      "form_of": [
        {
          "word": "sýr"
        }
      ],
      "glosses": [
        "indefinite accusative/dative singular of sýr"
      ],
      "links": [
        [
          "sýr",
          "sýr#Icelandic"
        ]
      ],
      "tags": [
        "accusative",
        "dative",
        "form-of",
        "indefinite",
        "singular"
      ]
    }
  ],
  "word": "sú"
}

{
  "categories": [
    "Icelandic entries with incorrect language header",
    "Icelandic non-lemma forms",
    "Icelandic pronoun forms",
    "Pages with 10 entries",
    "Pages with entries",
    "vi:Malpighiales order plants"
  ],
  "etymology_number": 2,
  "head_templates": [
    {
      "args": {
        "1": "is",
        "2": "pronoun form"
      },
      "expansion": "sú",
      "name": "head"
    }
  ],
  "lang": "Icelandic",
  "lang_code": "is",
  "pos": "pron",
  "senses": [
    {
      "form_of": [
        {
          "extra": "that",
          "word": "sá"
        }
      ],
      "glosses": [
        "nominative feminine singular of sá (“that”)"
      ],
      "links": [
        [
          "sá",
          "sá#Icelandic"
        ]
      ],
      "tags": [
        "feminine",
        "form-of",
        "nominative",
        "singular"
      ]
    }
  ],
  "word": "sú"
}