"ŭaŭ" meaning in Esperanto

{
  "etymology_templates": [
    {
      "args": {
        "1": "eo",
        "2": "en",
        "3": "wow"
      },
      "expansion": "English wow",
      "name": "bor"
    }
  ],
  "etymology_text": "Borrowed from English wow.",
  "hyphenation": [
    "ŭaŭ"
  ],
  "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": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "wow"
      ],
      "id": "en-ŭaŭ-eo-intj-ttyTMxG8",
      "links": [
        [
          "wow",
          "wow"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[u̯au̯]"
    },
    {
      "ipa": "[uˈau̯]"
    }
  ],
  "word": "ŭaŭ"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "eo",
        "2": "en",
        "3": "wow"
      },
      "expansion": "English wow",
      "name": "bor"
    }
  ],
  "etymology_text": "Borrowed from English wow.",
  "hyphenation": [
    "ŭaŭ"
  ],
  "lang": "Esperanto",
  "lang_code": "eo",
  "pos": "intj",
  "senses": [
    {
      "categories": [
        "Esperanto entries with incorrect language header",
        "Esperanto interjections",
        "Esperanto lemmas",
        "Esperanto palindromes",
        "Esperanto terms borrowed from English",
        "Esperanto terms derived from English",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "wow"
      ],
      "links": [
        [
          "wow",
          "wow"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[u̯au̯]"
    },
    {
      "ipa": "[uˈau̯]"
    }
  ],
  "word": "ŭaŭ"
}