"sigla" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "LL.",
        "3": "sigla"
      },
      "expansion": "Learned borrowing from Late Latin sigla",
      "name": "lbor"
    }
  ],
  "etymology_text": "Learned borrowing from Late Latin sigla.",
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "noun form"
      },
      "expansion": "sigla",
      "name": "head"
    }
  ],
  "hyphenation": [
    "sig‧la"
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English plurals in -a with singular in -um or -on",
          "parents": [],
          "source": "w"
        }
      ],
      "form_of": [
        {
          "word": "siglum"
        }
      ],
      "glosses": [
        "plural of siglum"
      ],
      "id": "en-sigla-en-noun-1RW-K8oX",
      "links": [
        [
          "siglum",
          "siglum#English"
        ]
      ],
      "tags": [
        "form-of",
        "plural"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈsɪɡlə/",
      "tags": [
        "General-American",
        "Received-Pronunciation"
      ]
    }
  ],
  "word": "sigla"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "LL.",
        "3": "sigla"
      },
      "expansion": "Learned borrowing from Late Latin sigla",
      "name": "lbor"
    }
  ],
  "etymology_text": "Learned borrowing from Late Latin sigla.",
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "noun form"
      },
      "expansion": "sigla",
      "name": "head"
    }
  ],
  "hyphenation": [
    "sig‧la"
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English 2-syllable words",
        "English entries with incorrect language header",
        "English learned borrowings from Late Latin",
        "English non-lemma forms",
        "English noun forms",
        "English plurals in -a with singular in -um or -on",
        "English terms borrowed from Late Latin",
        "English terms derived from Late Latin",
        "English terms with IPA pronunciation"
      ],
      "form_of": [
        {
          "word": "siglum"
        }
      ],
      "glosses": [
        "plural of siglum"
      ],
      "links": [
        [
          "siglum",
          "siglum#English"
        ]
      ],
      "tags": [
        "form-of",
        "plural"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈsɪɡlə/",
      "tags": [
        "General-American",
        "Received-Pronunciation"
      ]
    }
  ],
  "word": "sigla"
}