"SF 10" meaning in English

{
  "forms": [
    {
      "form": "SF 10s",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "head": "SF 10"
      },
      "expansion": "SF 10 (plural SF 10s)",
      "name": "en-noun"
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "school form 10"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
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          "source": "w"
        },
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          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
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        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Philippine English",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Education",
          "orig": "en:Education",
          "parents": [
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Abbreviation of school form 10."
      ],
      "id": "en-SF_10-en-noun-V3VBo4Wq",
      "links": [
        [
          "education",
          "education"
        ],
        [
          "school form 10",
          "school form 10#English"
        ]
      ],
      "raw_glosses": [
        "(Philippines, education) Abbreviation of school form 10."
      ],
      "tags": [
        "Philippines",
        "abbreviation",
        "alt-of"
      ],
      "topics": [
        "education"
      ]
    }
  ],
  "word": "SF 10"
}

{
  "forms": [
    {
      "form": "SF 10s",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "head": "SF 10"
      },
      "expansion": "SF 10 (plural SF 10s)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "school form 10"
        }
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        "English abbreviations",
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        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms spelled with numbers",
        "English words without vowels",
        "Pages with 1 entry",
        "Pages with entries",
        "Philippine English",
        "en:Education"
      ],
      "glosses": [
        "Abbreviation of school form 10."
      ],
      "links": [
        [
          "education",
          "education"
        ],
        [
          "school form 10",
          "school form 10#English"
        ]
      ],
      "raw_glosses": [
        "(Philippines, education) Abbreviation of school form 10."
      ],
      "tags": [
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        "abbreviation",
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      "topics": [
        "education"
      ]
    }
  ],
  "word": "SF 10"
}