"SK" meaning in Tagalog

{
  "head_templates": [
    {
      "args": {},
      "expansion": "SK",
      "name": "tl-proper noun"
    }
  ],
  "lang": "Tagalog",
  "lang_code": "tl",
  "pos": "name",
  "senses": [
    {
      "alt_of": [
        {
          "word": "Sangguniang Kabataan"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "Tagalog entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Tagalog links with redundant alt parameters",
          "parents": [
            "Links with redundant alt parameters",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Tagalog links with redundant wikilinks",
          "parents": [
            "Links with redundant wikilinks",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Tagalog terms without Baybayin script",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Initialism of Sangguniang Kabataan."
      ],
      "id": "en-SK-tl-name-xVWNY1~Q",
      "links": [
        [
          "Sangguniang Kabataan",
          "w:Sangguniang Kabataan"
        ]
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "initialism"
      ]
    }
  ],
  "sounds": [
    {
      "other": "/ˈʔeskej/"
    },
    {
      "other": "[ˈʔɛs.kɛɪ̯]"
    }
  ],
  "word": "SK"
}

{
  "head_templates": [
    {
      "args": {},
      "expansion": "SK",
      "name": "tl-proper noun"
    }
  ],
  "lang": "Tagalog",
  "lang_code": "tl",
  "pos": "name",
  "senses": [
    {
      "alt_of": [
        {
          "word": "Sangguniang Kabataan"
        }
      ],
      "categories": [
        "Tagalog 2-syllable words",
        "Tagalog entries with incorrect language header",
        "Tagalog initialisms",
        "Tagalog lemmas",
        "Tagalog links with redundant alt parameters",
        "Tagalog links with redundant wikilinks",
        "Tagalog proper nouns",
        "Tagalog terms with IPA pronunciation",
        "Tagalog terms without Baybayin script"
      ],
      "glosses": [
        "Initialism of Sangguniang Kabataan."
      ],
      "links": [
        [
          "Sangguniang Kabataan",
          "w:Sangguniang Kabataan"
        ]
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "initialism"
      ]
    }
  ],
  "sounds": [
    {
      "other": "/ˈʔeskej/"
    },
    {
      "other": "[ˈʔɛs.kɛɪ̯]"
    }
  ],
  "word": "SK"
}