"unu" meaning in Esperanto

{
  "etymology_templates": [
    {
      "args": {
        "1": "eo",
        "2": "la",
        "3": "ūnus"
      },
      "expansion": "Latin ūnus",
      "name": "der"
    }
  ],
  "etymology_text": "From Latin ūnus.",
  "hyphenation": [
    "u‧nu"
  ],
  "lang": "Esperanto",
  "lang_code": "eo",
  "pos": "num",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Esperanto 1894 Universala Vortaro",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Esperanto BRO1",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Esperanto GCSE0",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "name": "Esperanto cardinal numbers",
          "parents": [
            "Cardinal numbers",
            "Numbers",
            "All topics",
            "Terms by semantic function",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Esperanto entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
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          "source": "w"
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        {
          "kind": "other",
          "name": "Pages with 23 entries",
          "parents": [],
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        {
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        {
          "kind": "other",
          "name": "Words approved by the Akademio de Esperanto",
          "parents": [],
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        }
      ],
      "derived": [
        {
          "word": "unuo"
        }
      ],
      "glosses": [
        "one (1)"
      ],
      "id": "en-unu-eo-num-PWLq0kFa",
      "links": [
        [
          "one",
          "one"
        ],
        [
          "1",
          "1"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ˈunu]"
    },
    {
      "rhymes": "-unu"
    }
  ],
  "word": "unu"
}

{
  "categories": [
    "Pages with 23 entries",
    "Pages with entries"
  ],
  "derived": [
    {
      "word": "unuo"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "eo",
        "2": "la",
        "3": "ūnus"
      },
      "expansion": "Latin ūnus",
      "name": "der"
    }
  ],
  "etymology_text": "From Latin ūnus.",
  "hyphenation": [
    "u‧nu"
  ],
  "lang": "Esperanto",
  "lang_code": "eo",
  "pos": "num",
  "senses": [
    {
      "categories": [
        "Esperanto 1894 Universala Vortaro",
        "Esperanto BRO1",
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        "Esperanto cardinal numbers",
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        "Esperanto lemmas",
        "Esperanto numerals",
        "Esperanto palindromes",
        "Esperanto terms derived from Latin",
        "Esperanto terms with IPA pronunciation",
        "Esperanto terms with audio pronunciation",
        "Pages with 23 entries",
        "Pages with entries",
        "Rhymes:Esperanto/unu",
        "Words approved by the Akademio de Esperanto"
      ],
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          "one",
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          "1",
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    }
  ],
  "sounds": [
    {
      "ipa": "[ˈunu]"
    },
    {
      "rhymes": "-unu"
    }
  ],
  "word": "unu"
}