"svasso" meaning in Italian

{
  "forms": [
    {
      "form": "svassi",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m"
      },
      "expansion": "svasso m (plural svassi)",
      "name": "it-noun"
    }
  ],
  "hyphenation": [
    "svàs‧so"
  ],
  "lang": "Italian",
  "lang_code": "it",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Italian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "lifeform",
          "langcode": "it",
          "name": "Birds",
          "orig": "it:Birds",
          "parents": [
            "Vertebrates",
            "Chordates",
            "Animals",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w"
        }
      ],
      "derived": [
        {
          "word": "svasso maggiore"
        },
        {
          "word": "svasso piccolo"
        }
      ],
      "glosses": [
        "grebe"
      ],
      "id": "en-svasso-it-noun-A1jhhQmp",
      "links": [
        [
          "grebe",
          "grebe"
        ]
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈzvas.so/"
    },
    {
      "rhymes": "-asso"
    }
  ],
  "word": "svasso"
}

{
  "derived": [
    {
      "word": "svasso maggiore"
    },
    {
      "word": "svasso piccolo"
    }
  ],
  "forms": [
    {
      "form": "svassi",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m"
      },
      "expansion": "svasso m (plural svassi)",
      "name": "it-noun"
    }
  ],
  "hyphenation": [
    "svàs‧so"
  ],
  "lang": "Italian",
  "lang_code": "it",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Italian 2-syllable words",
        "Italian countable nouns",
        "Italian entries with incorrect language header",
        "Italian lemmas",
        "Italian masculine nouns",
        "Italian nouns",
        "Italian terms with IPA pronunciation",
        "Rhymes:Italian/asso",
        "Rhymes:Italian/asso/2 syllables",
        "it:Birds"
      ],
      "glosses": [
        "grebe"
      ],
      "links": [
        [
          "grebe",
          "grebe"
        ]
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈzvas.so/"
    },
    {
      "rhymes": "-asso"
    }
  ],
  "word": "svasso"
}