"boca-livre" meaning in Portuguese

{
  "forms": [
    {
      "form": "bocas-livres",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "mf",
        "2": "++"
      },
      "expansion": "boca-livre m or f (plural bocas-livres)",
      "name": "pt-noun"
    }
  ],
  "lang": "Portuguese",
  "lang_code": "pt",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "boca livre"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Portuguese entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Alternative spelling of boca livre"
      ],
      "id": "en-boca-livre-pt-noun-HV47DAWz",
      "links": [
        [
          "boca livre",
          "boca livre#Portuguese"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative",
        "feminine",
        "masculine"
      ]
    }
  ],
  "word": "boca-livre"
}

{
  "forms": [
    {
      "form": "bocas-livres",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "mf",
        "2": "++"
      },
      "expansion": "boca-livre m or f (plural bocas-livres)",
      "name": "pt-noun"
    }
  ],
  "lang": "Portuguese",
  "lang_code": "pt",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "boca livre"
        }
      ],
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Portuguese countable nouns",
        "Portuguese entries with incorrect language header",
        "Portuguese feminine nouns",
        "Portuguese lemmas",
        "Portuguese masculine nouns",
        "Portuguese multiword terms",
        "Portuguese nouns",
        "Portuguese nouns with multiple genders"
      ],
      "glosses": [
        "Alternative spelling of boca livre"
      ],
      "links": [
        [
          "boca livre",
          "boca livre#Portuguese"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative",
        "feminine",
        "masculine"
      ]
    }
  ],
  "word": "boca-livre"
}