"bertso" meaning in Spanish

{
  "etymology_templates": [
    {
      "args": {
        "1": "es",
        "2": "eu",
        "3": "bertso"
      },
      "expansion": "Borrowed from Basque bertso",
      "name": "bor+"
    },
    {
      "args": {
        "1": "es",
        "2": "es",
        "3": "verso"
      },
      "expansion": "Spanish verso",
      "name": "der"
    }
  ],
  "etymology_text": "Borrowed from Basque bertso, from Spanish verso.",
  "forms": [
    {
      "form": "bertsos",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m"
      },
      "expansion": "bertso m (plural bertsos)",
      "name": "es-noun"
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 2 entries",
          "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": "other",
          "name": "Spanish terms borrowed back into Spanish",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "place",
          "langcode": "es",
          "name": "Basque Country",
          "orig": "es:Basque Country",
          "parents": [
            "Spain",
            "Europe",
            "Earth",
            "Eurasia",
            "Nature",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "a spontaneous song sung in Basque"
      ],
      "id": "en-bertso-es-noun-rCJYnw8N",
      "links": [
        [
          "song",
          "song"
        ],
        [
          "Basque",
          "Basque"
        ]
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈbeɾt͡ʃo/"
    },
    {
      "ipa": "[ˈbeɾ.t͡ʃo]"
    },
    {
      "rhymes": "-eɾtʃo"
    }
  ],
  "word": "bertso"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "es",
        "2": "eu",
        "3": "bertso"
      },
      "expansion": "Borrowed from Basque bertso",
      "name": "bor+"
    },
    {
      "args": {
        "1": "es",
        "2": "es",
        "3": "verso"
      },
      "expansion": "Spanish verso",
      "name": "der"
    }
  ],
  "etymology_text": "Borrowed from Basque bertso, from Spanish verso.",
  "forms": [
    {
      "form": "bertsos",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m"
      },
      "expansion": "bertso m (plural bertsos)",
      "name": "es-noun"
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Pages with 2 entries",
        "Pages with entries",
        "Rhymes:Spanish/eɾtʃo",
        "Rhymes:Spanish/eɾtʃo/2 syllables",
        "Spanish 2-syllable words",
        "Spanish countable nouns",
        "Spanish entries with incorrect language header",
        "Spanish lemmas",
        "Spanish masculine nouns",
        "Spanish nouns",
        "Spanish terms borrowed back into Spanish",
        "Spanish terms borrowed from Basque",
        "Spanish terms derived from Basque",
        "Spanish terms with IPA pronunciation",
        "es:Basque Country"
      ],
      "glosses": [
        "a spontaneous song sung in Basque"
      ],
      "links": [
        [
          "song",
          "song"
        ],
        [
          "Basque",
          "Basque"
        ]
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈbeɾt͡ʃo/"
    },
    {
      "ipa": "[ˈbeɾ.t͡ʃo]"
    },
    {
      "rhymes": "-eɾtʃo"
    }
  ],
  "word": "bertso"
}