"ics" meaning in Catalan

{
  "head_templates": [
    {
      "args": {
        "1": "f"
      },
      "expansion": "ics f (invariable)",
      "name": "ca-noun"
    }
  ],
  "lang": "Catalan",
  "lang_code": "ca",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Catalan entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Catalan feminine nouns with no feminine ending",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "ca",
          "name": "Latin letter names",
          "orig": "ca:Latin letter names",
          "parents": [
            "Letter names",
            "Letters, symbols, and punctuation",
            "Names",
            "Orthography",
            "All topics",
            "Proper nouns",
            "Terms by semantic function",
            "Writing",
            "Fundamental",
            "Nouns",
            "Human behaviour",
            "Language",
            "Lemmas",
            "Human",
            "Communication"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "The name of the Latin-script letter X, especially when used for /ks/ or /ɡz/"
      ],
      "id": "en-ics-ca-noun-4HAlduUB",
      "links": [
        [
          "X",
          "X#Catalan"
        ]
      ],
      "related": [
        {
          "word": "xeix"
        }
      ],
      "tags": [
        "feminine",
        "invariable"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ˈiks]",
      "tags": [
        "Balearic",
        "Central",
        "Valencian"
      ]
    }
  ],
  "word": "ics"
}

{
  "head_templates": [
    {
      "args": {
        "1": "f"
      },
      "expansion": "ics f (invariable)",
      "name": "ca-noun"
    }
  ],
  "lang": "Catalan",
  "lang_code": "ca",
  "pos": "noun",
  "related": [
    {
      "word": "xeix"
    }
  ],
  "senses": [
    {
      "categories": [
        "Catalan countable nouns",
        "Catalan entries with incorrect language header",
        "Catalan feminine nouns",
        "Catalan feminine nouns with no feminine ending",
        "Catalan indeclinable nouns",
        "Catalan lemmas",
        "Catalan nouns",
        "Catalan terms with IPA pronunciation",
        "ca:Latin letter names"
      ],
      "glosses": [
        "The name of the Latin-script letter X, especially when used for /ks/ or /ɡz/"
      ],
      "links": [
        [
          "X",
          "X#Catalan"
        ]
      ],
      "tags": [
        "feminine",
        "invariable"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ˈiks]",
      "tags": [
        "Balearic",
        "Central",
        "Valencian"
      ]
    }
  ],
  "word": "ics"
}