"SGLF" meaning in English

{
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    {
      "form": "SGLFs",
      "tags": [
        "plural"
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      "args": {},
      "expansion": "SGLF (plural SGLFs)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "solar gravitational lens focus­ or initialism of solar gravity lens focus"
        }
      ],
      "categories": [
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          "kind": "other",
          "name": "English entries with incorrect language header",
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          "source": "w"
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          "source": "w"
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        {
          "kind": "topical",
          "langcode": "en",
          "name": "Astronomy",
          "orig": "en:Astronomy",
          "parents": [
            "Sciences",
            "Space",
            "All topics",
            "Nature",
            "Fundamental"
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          "source": "w"
        }
      ],
      "glosses": [
        "Initialism of solar gravitational lens focus­ or initialism of solar gravity lens focus."
      ],
      "id": "en-SGLF-en-noun-VJoL9HMl",
      "links": [
        [
          "astronomy",
          "astronomy"
        ],
        [
          "solar gravitational lens",
          "w:solar gravitational lens"
        ],
        [
          "focus",
          "focus#English"
        ],
        [
          "solar gravity lens",
          "w:solar gravity lens"
        ]
      ],
      "raw_glosses": [
        "(astronomy) Initialism of solar gravitational lens focus­ or initialism of solar gravity lens focus."
      ],
      "related": [
        {
          "word": "SGL"
        }
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "initialism"
      ],
      "topics": [
        "astronomy",
        "natural-sciences"
      ]
    }
  ],
  "word": "SGLF"
}

{
  "forms": [
    {
      "form": "SGLFs",
      "tags": [
        "plural"
      ]
    }
  ],
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      "expansion": "SGLF (plural SGLFs)",
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  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "SGL"
    }
  ],
  "senses": [
    {
      "alt_of": [
        {
          "word": "solar gravitational lens focus­ or initialism of solar gravity lens focus"
        }
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        "English countable nouns",
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        "Pages with 1 entry",
        "Pages with entries",
        "en:Astronomy"
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      "glosses": [
        "Initialism of solar gravitational lens focus­ or initialism of solar gravity lens focus."
      ],
      "links": [
        [
          "astronomy",
          "astronomy"
        ],
        [
          "solar gravitational lens",
          "w:solar gravitational lens"
        ],
        [
          "focus",
          "focus#English"
        ],
        [
          "solar gravity lens",
          "w:solar gravity lens"
        ]
      ],
      "raw_glosses": [
        "(astronomy) Initialism of solar gravitational lens focus­ or initialism of solar gravity lens focus."
      ],
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        "alt-of",
        "initialism"
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      "topics": [
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  ],
  "word": "SGLF"
}