"chielarko" meaning in Esperanto

{
  "forms": [
    {
      "form": "chielarkon",
      "tags": [
        "accusative",
        "singular"
      ]
    },
    {
      "form": "chielarkoj",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "chielarkojn",
      "tags": [
        "accusative",
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "chielarko (accusative singular chielarkon, plural chielarkoj, accusative plural chielarkojn)",
      "name": "eo-head"
    }
  ],
  "lang": "Esperanto",
  "lang_code": "eo",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "ĉielarko"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "Esperanto entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "H-system spelling of ĉielarko"
      ],
      "id": "en-chielarko-eo-noun-H7eVuX4Z",
      "links": [
        [
          "ĉielarko",
          "ĉielarko#Esperanto"
        ]
      ],
      "tags": [
        "H-system",
        "alt-of"
      ]
    }
  ],
  "word": "chielarko"
}

{
  "forms": [
    {
      "form": "chielarkon",
      "tags": [
        "accusative",
        "singular"
      ]
    },
    {
      "form": "chielarkoj",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "chielarkojn",
      "tags": [
        "accusative",
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "chielarko (accusative singular chielarkon, plural chielarkoj, accusative plural chielarkojn)",
      "name": "eo-head"
    }
  ],
  "lang": "Esperanto",
  "lang_code": "eo",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "ĉielarko"
        }
      ],
      "categories": [
        "Esperanto H-system forms",
        "Esperanto entries with incorrect language header",
        "Esperanto lemmas",
        "Esperanto nouns",
        "Esperanto nouns with red links in their headword lines",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "H-system spelling of ĉielarko"
      ],
      "links": [
        [
          "ĉielarko",
          "ĉielarko#Esperanto"
        ]
      ],
      "tags": [
        "H-system",
        "alt-of"
      ]
    }
  ],
  "word": "chielarko"
}