"A" meaning in Czech

{
  "head_templates": [
    {
      "args": {
        "1": "cs",
        "2": "letters"
      },
      "expansion": "A",
      "name": "head"
    }
  ],
  "lang": "Czech",
  "lang_code": "cs",
  "pos": "character",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Czech entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 236 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "A (the 1st letter in the Czech alphabet)"
      ],
      "id": "en-A-cs-character-QC0kyqJm",
      "links": [
        [
          "A",
          "A#English"
        ]
      ],
      "related": [
        {
          "word": "Template:list:Latin script letters"
        },
        {
          "word": "cs."
        }
      ],
      "tags": [
        "letter"
      ]
    }
  ],
  "word": "A"
}

{
  "head_templates": [
    {
      "args": {
        "1": "cs",
        "2": "letters"
      },
      "expansion": "A",
      "name": "head"
    }
  ],
  "lang": "Czech",
  "lang_code": "cs",
  "pos": "character",
  "related": [
    {
      "word": "Template:list:Latin script letters"
    },
    {
      "word": "cs."
    }
  ],
  "senses": [
    {
      "categories": [
        "Czech entries with incorrect language header",
        "Czech lemmas",
        "Czech letters",
        "Pages with 236 entries",
        "Pages with entries"
      ],
      "glosses": [
        "A (the 1st letter in the Czech alphabet)"
      ],
      "links": [
        [
          "A",
          "A#English"
        ]
      ],
      "tags": [
        "letter"
      ]
    }
  ],
  "word": "A"
}