"waka" meaning in Mapudungun

{
  "etymology_templates": [
    {
      "args": {
        "1": "arn",
        "2": "es",
        "3": "vaca"
      },
      "expansion": "Spanish vaca",
      "name": "bor"
    }
  ],
  "etymology_text": "Borrowed from Spanish vaca.",
  "head_templates": [
    {
      "args": {
        "1": "arn",
        "2": "noun"
      },
      "expansion": "waka",
      "name": "head"
    }
  ],
  "lang": "Mapudungun",
  "lang_code": "arn",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Mapudungun entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 23 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Raguileo Mapudungun spellings",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "lifeform",
          "langcode": "arn",
          "name": "Mammals",
          "orig": "arn:Mammals",
          "parents": [
            "Vertebrates",
            "Chordates",
            "Animals",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "cow"
      ],
      "id": "en-waka-arn-noun-vrE0dUkQ",
      "links": [
        [
          "cow",
          "cow"
        ]
      ],
      "tags": [
        "Raguileo-Alphabet"
      ]
    }
  ],
  "word": "waka"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "arn",
        "2": "es",
        "3": "vaca"
      },
      "expansion": "Spanish vaca",
      "name": "bor"
    }
  ],
  "etymology_text": "Borrowed from Spanish vaca.",
  "head_templates": [
    {
      "args": {
        "1": "arn",
        "2": "noun"
      },
      "expansion": "waka",
      "name": "head"
    }
  ],
  "lang": "Mapudungun",
  "lang_code": "arn",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Mapudungun entries with incorrect language header",
        "Mapudungun lemmas",
        "Mapudungun nouns",
        "Mapudungun terms borrowed from Spanish",
        "Mapudungun terms derived from Spanish",
        "Pages with 23 entries",
        "Pages with entries",
        "Raguileo Mapudungun spellings",
        "arn:Mammals"
      ],
      "glosses": [
        "cow"
      ],
      "links": [
        [
          "cow",
          "cow"
        ]
      ],
      "tags": [
        "Raguileo-Alphabet"
      ]
    }
  ],
  "word": "waka"
}