"anzitutto" meaning in Italian

{
  "etymology_templates": [
    {
      "args": {
        "1": "it",
        "2": "anzi",
        "3": "tutto"
      },
      "expansion": "Univerbation of anzi + tutto",
      "name": "univerbation"
    }
  ],
  "etymology_text": "Univerbation of anzi + tutto.",
  "head_templates": [
    {
      "args": {},
      "expansion": "anzitutto",
      "name": "it-adv"
    }
  ],
  "hyphenation": [
    "an‧zi‧tùt‧to"
  ],
  "lang": "Italian",
  "lang_code": "it",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Italian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Italian univerbations",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "first of all"
      ],
      "id": "en-anzitutto-it-adv-4zypZdoq",
      "links": [
        [
          "first of all",
          "first of all"
        ]
      ],
      "synonyms": [
        {
          "word": "innanzitutto"
        },
        {
          "word": "prima di tutto"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/an.t͡siˈtut.to/"
    },
    {
      "rhymes": "-utto"
    }
  ],
  "word": "anzitutto"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "it",
        "2": "anzi",
        "3": "tutto"
      },
      "expansion": "Univerbation of anzi + tutto",
      "name": "univerbation"
    }
  ],
  "etymology_text": "Univerbation of anzi + tutto.",
  "head_templates": [
    {
      "args": {},
      "expansion": "anzitutto",
      "name": "it-adv"
    }
  ],
  "hyphenation": [
    "an‧zi‧tùt‧to"
  ],
  "lang": "Italian",
  "lang_code": "it",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        "Italian 4-syllable words",
        "Italian adverbs",
        "Italian entries with incorrect language header",
        "Italian lemmas",
        "Italian terms with IPA pronunciation",
        "Italian univerbations",
        "Rhymes:Italian/utto",
        "Rhymes:Italian/utto/4 syllables"
      ],
      "glosses": [
        "first of all"
      ],
      "links": [
        [
          "first of all",
          "first of all"
        ]
      ],
      "synonyms": [
        {
          "word": "innanzitutto"
        },
        {
          "word": "prima di tutto"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/an.t͡siˈtut.to/"
    },
    {
      "rhymes": "-utto"
    }
  ],
  "word": "anzitutto"
}