"eventajn horizontojn" meaning in Esperanto

{
  "head_templates": [
    {
      "args": {},
      "expansion": "eventajn horizontojn",
      "name": "eo-head"
    }
  ],
  "hyphenation": [
    "e‧ven‧tajn"
  ],
  "lang": "Esperanto",
  "lang_code": "eo",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Esperanto entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "form_of": [
        {
          "word": "eventa horizonto"
        }
      ],
      "glosses": [
        "accusative plural of eventa horizonto"
      ],
      "id": "en-eventajn_horizontojn-eo-noun-NU9IAUgk",
      "links": [
        [
          "eventa horizonto",
          "eventa horizonto#Esperanto"
        ]
      ],
      "tags": [
        "accusative",
        "form-of",
        "plural"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[eˈventajn horiˈzontojn]"
    },
    {
      "rhymes": "-ontojn"
    }
  ],
  "word": "eventajn horizontojn"
}

{
  "head_templates": [
    {
      "args": {},
      "expansion": "eventajn horizontojn",
      "name": "eo-head"
    }
  ],
  "hyphenation": [
    "e‧ven‧tajn"
  ],
  "lang": "Esperanto",
  "lang_code": "eo",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Esperanto entries with incorrect language header",
        "Esperanto nominal participles",
        "Esperanto non-lemma forms",
        "Esperanto noun forms",
        "Esperanto participles",
        "Esperanto terms with IPA pronunciation",
        "Rhymes:Esperanto/ontojn"
      ],
      "form_of": [
        {
          "word": "eventa horizonto"
        }
      ],
      "glosses": [
        "accusative plural of eventa horizonto"
      ],
      "links": [
        [
          "eventa horizonto",
          "eventa horizonto#Esperanto"
        ]
      ],
      "tags": [
        "accusative",
        "form-of",
        "plural"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[eˈventajn horiˈzontojn]"
    },
    {
      "rhymes": "-ontojn"
    }
  ],
  "word": "eventajn horizontojn"
}