"sierra de vaivén" meaning in Spanish

{
  "forms": [
    {
      "form": "sierras de vaivén",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "f"
      },
      "expansion": "sierra de vaivén f (plural sierras de vaivén)",
      "name": "es-noun"
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Spanish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "es",
          "name": "Saws",
          "orig": "es:Saws",
          "parents": [
            "Tools",
            "Technology",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "es",
          "name": "Tools",
          "orig": "es:Tools",
          "parents": [
            "Technology",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "coordinate_terms": [
        {
          "word": "sierra de sable"
        },
        {
          "word": "segueta"
        }
      ],
      "glosses": [
        "jigsaw (tool)"
      ],
      "id": "en-sierra_de_vaivén-es-noun-5d0SsSt6",
      "links": [
        [
          "jigsaw",
          "jigsaw"
        ]
      ],
      "synonyms": [
        {
          "word": "sierra caladora"
        },
        {
          "word": "caladora"
        }
      ],
      "tags": [
        "feminine"
      ],
      "wikipedia": [
        "es:sierra de vaivén"
      ]
    }
  ],
  "word": "sierra de vaivén"
}

{
  "coordinate_terms": [
    {
      "word": "sierra de sable"
    },
    {
      "word": "segueta"
    }
  ],
  "forms": [
    {
      "form": "sierras de vaivén",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "f"
      },
      "expansion": "sierra de vaivén f (plural sierras de vaivén)",
      "name": "es-noun"
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Spanish countable nouns",
        "Spanish entries with incorrect language header",
        "Spanish feminine nouns",
        "Spanish lemmas",
        "Spanish multiword terms",
        "Spanish nouns",
        "es:Saws",
        "es:Tools"
      ],
      "glosses": [
        "jigsaw (tool)"
      ],
      "links": [
        [
          "jigsaw",
          "jigsaw"
        ]
      ],
      "synonyms": [
        {
          "word": "sierra caladora"
        },
        {
          "word": "caladora"
        }
      ],
      "tags": [
        "feminine"
      ],
      "wikipedia": [
        "es:sierra de vaivén"
      ]
    }
  ],
  "word": "sierra de vaivén"
}