"muu" meaning in Esperanto

{
  "etymology_templates": [
    {
      "args": {
        "1": "eo"
      },
      "expansion": "Onomatopoeic",
      "name": "onomatopoeic"
    }
  ],
  "etymology_text": "Onomatopoeic.",
  "hyphenation": [
    "mu‧u"
  ],
  "lang": "Esperanto",
  "lang_code": "eo",
  "pos": "intj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Esperanto entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Esperanto onomatopoeias",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "eo",
          "name": "Animal sounds",
          "orig": "eo:Animal sounds",
          "parents": [
            "Sounds",
            "Vocalizations",
            "Sound",
            "Communication",
            "Energy",
            "All topics",
            "Nature",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "lifeform",
          "langcode": "eo",
          "name": "Cattle",
          "orig": "eo:Cattle",
          "parents": [
            "Bovines",
            "Livestock",
            "Even-toed ungulates",
            "Agriculture",
            "Animals",
            "Mammals",
            "Applied sciences",
            "Lifeforms",
            "Vertebrates",
            "Sciences",
            "All topics",
            "Life",
            "Chordates",
            "Fundamental",
            "Nature"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "moo (the cry of a cow)"
      ],
      "id": "en-muu-eo-intj-kxvLfclQ",
      "links": [
        [
          "moo",
          "moo"
        ],
        [
          "cow",
          "cow"
        ]
      ],
      "related": [
        {
          "english": "to moo",
          "word": "muĝi"
        },
        {
          "english": "a moo",
          "word": "muĝo"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ˈmuu]"
    },
    {
      "rhymes": "-uu"
    }
  ],
  "word": "muu"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "eo"
      },
      "expansion": "Onomatopoeic",
      "name": "onomatopoeic"
    }
  ],
  "etymology_text": "Onomatopoeic.",
  "hyphenation": [
    "mu‧u"
  ],
  "lang": "Esperanto",
  "lang_code": "eo",
  "pos": "intj",
  "related": [
    {
      "english": "to moo",
      "word": "muĝi"
    },
    {
      "english": "a moo",
      "word": "muĝo"
    }
  ],
  "senses": [
    {
      "categories": [
        "Esperanto entries with incorrect language header",
        "Esperanto interjections",
        "Esperanto lemmas",
        "Esperanto onomatopoeias",
        "Esperanto terms with IPA pronunciation",
        "Esperanto terms with audio links",
        "Rhymes:Esperanto/uu",
        "eo:Animal sounds",
        "eo:Cattle"
      ],
      "glosses": [
        "moo (the cry of a cow)"
      ],
      "links": [
        [
          "moo",
          "moo"
        ],
        [
          "cow",
          "cow"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ˈmuu]"
    },
    {
      "rhymes": "-uu"
    }
  ],
  "word": "muu"
}