"su" meaning in Greenlandic

{
  "head_templates": [
    {
      "args": {
        "1": "kl",
        "2": "root"
      },
      "expansion": "su",
      "name": "head"
    }
  ],
  "lang": "Greenlandic",
  "lang_code": "kl",
  "pos": "root",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Greenlandic entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Greenlandic roots",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Usually has interrogative meaning."
      ],
      "id": "en-su-kl-root-dUIVWNPn",
      "tags": [
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/su/",
      "note": "Nuuk"
    },
    {
      "ipa": "[sʊ]",
      "note": "Nuuk"
    }
  ],
  "word": "su"
}

{
  "categories": [
    "White Hmong entries with incorrect language header",
    "White Hmong lemmas",
    "White Hmong terms with IPA pronunciation",
    "White Hmong verbs"
  ],
  "head_templates": [
    {
      "args": {
        "1": "kl",
        "2": "root"
      },
      "expansion": "su",
      "name": "head"
    }
  ],
  "lang": "Greenlandic",
  "lang_code": "kl",
  "pos": "root",
  "senses": [
    {
      "categories": [
        "Greenlandic entries with incorrect language header",
        "Greenlandic lemmas",
        "Greenlandic roots",
        "Greenlandic terms with IPA pronunciation"
      ],
      "glosses": [
        "Usually has interrogative meaning."
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/su/",
      "note": "Nuuk"
    },
    {
      "ipa": "[sʊ]",
      "note": "Nuuk"
    }
  ],
  "word": "su"
}