"Iono" meaning in Esperanto

{
  "forms": [
    {
      "form": "Ionon",
      "tags": [
        "accusative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Iono (accusative Ionon)",
      "name": "eo-proper noun"
    }
  ],
  "hyphenation": [
    "I‧o‧no"
  ],
  "lang": "Esperanto",
  "lang_code": "eo",
  "pos": "name",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Esperanto entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "eo",
          "name": "Astronomy",
          "orig": "eo:Astronomy",
          "parents": [
            "Sciences",
            "Space",
            "All topics",
            "Nature",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Io (moon of Jupiter)"
      ],
      "id": "en-Iono-eo-name-GUnxCc5B",
      "links": [
        [
          "astronomy",
          "astronomy"
        ],
        [
          "Io",
          "Io"
        ],
        [
          "Jupiter",
          "Jupiter"
        ]
      ],
      "raw_glosses": [
        "(astronomy) Io (moon of Jupiter)"
      ],
      "related": [
        {
          "english": "Ionean",
          "word": "iona"
        }
      ],
      "topics": [
        "astronomy",
        "natural-sciences"
      ],
      "wikipedia": [
        "eo:Eŭropo (luno)"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[iˈono]"
    },
    {
      "rhymes": "-ono"
    }
  ],
  "word": "Iono"
}

{
  "forms": [
    {
      "form": "Ionon",
      "tags": [
        "accusative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Iono (accusative Ionon)",
      "name": "eo-proper noun"
    }
  ],
  "hyphenation": [
    "I‧o‧no"
  ],
  "lang": "Esperanto",
  "lang_code": "eo",
  "pos": "name",
  "related": [
    {
      "english": "Ionean",
      "word": "iona"
    }
  ],
  "senses": [
    {
      "categories": [
        "Esperanto entries with incorrect language header",
        "Esperanto lemmas",
        "Esperanto nouns with red links in their headword lines",
        "Esperanto proper nouns",
        "Esperanto terms with IPA pronunciation",
        "Rhymes:Esperanto/ono",
        "eo:Astronomy"
      ],
      "glosses": [
        "Io (moon of Jupiter)"
      ],
      "links": [
        [
          "astronomy",
          "astronomy"
        ],
        [
          "Io",
          "Io"
        ],
        [
          "Jupiter",
          "Jupiter"
        ]
      ],
      "raw_glosses": [
        "(astronomy) Io (moon of Jupiter)"
      ],
      "topics": [
        "astronomy",
        "natural-sciences"
      ],
      "wikipedia": [
        "eo:Eŭropo (luno)"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[iˈono]"
    },
    {
      "rhymes": "-ono"
    }
  ],
  "word": "Iono"
}