"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"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 24 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Words approved by the Akademio de Esperanto",
          "parents": [],
          "source": "w"
        }
      ],
      "derived": [
        {
          "word": "unuo"
        }
      ],
      "glosses": [
        "one (1)"
      ],
      "id": "en-unu-eo-num-PWLq0kFa",
      "links": [
        [
          "one",
          "one"
        ],
        [
          "1",
          "1"
        ]
      ],
      "synonyms": [
        {
          "word": "un'"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ˈunu]"
    },
    {
      "rhymes": "-unu"
    }
  ],
  "word": "unu"
}

{
  "categories": [
    "Pages with 24 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",
        "Esperanto GCSE0",
        "Esperanto cardinal numbers",
        "Esperanto entries with incorrect language header",
        "Esperanto lemmas",
        "Esperanto numerals",
        "Esperanto palindromes",
        "Esperanto terms derived from Latin",
        "Esperanto terms with IPA pronunciation",
        "Esperanto terms with audio pronunciation",
        "Pages with 24 entries",
        "Pages with entries",
        "Rhymes:Esperanto/unu",
        "Words approved by the Akademio de Esperanto"
      ],
      "glosses": [
        "one (1)"
      ],
      "links": [
        [
          "one",
          "one"
        ],
        [
          "1",
          "1"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ˈunu]"
    },
    {
      "rhymes": "-unu"
    }
  ],
  "synonyms": [
    {
      "word": "un'"
    }
  ],
  "word": "unu"
}