"a dir tanto" meaning in Italian

{
  "etymology_templates": [
    {
      "args": {
        "1": "to say much"
      },
      "expansion": "“to say much”",
      "name": "m-g"
    },
    {
      "args": {
        "1": "to say much"
      },
      "expansion": "Literally, “to say much”",
      "name": "lit"
    }
  ],
  "etymology_text": "Literally, “to say much”.",
  "head_templates": [
    {
      "args": {},
      "expansion": "a dir tanto",
      "name": "it-adv"
    }
  ],
  "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"
        }
      ],
      "examples": [
        {
          "english": "The whole incident could not have taken as much as half a minute.\n(literally, “All told, the incident lasted, to exaggerate, half a minute.”)",
          "ref": "2019, George Orwell, translated by Nicola Gardini, Nineteen Eighty-Four, Mondadori",
          "text": "In tutto, l'incidente era durato, a dir tanto, mezzo minuto.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "used to suggest an overstatement"
      ],
      "id": "en-a_dir_tanto-it-adv-QsBD9BIR",
      "links": [
        [
          "overstatement",
          "overstatement#English"
        ]
      ]
    }
  ],
  "word": "a dir tanto"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "to say much"
      },
      "expansion": "“to say much”",
      "name": "m-g"
    },
    {
      "args": {
        "1": "to say much"
      },
      "expansion": "Literally, “to say much”",
      "name": "lit"
    }
  ],
  "etymology_text": "Literally, “to say much”.",
  "head_templates": [
    {
      "args": {},
      "expansion": "a dir tanto",
      "name": "it-adv"
    }
  ],
  "lang": "Italian",
  "lang_code": "it",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        "Italian adverbs",
        "Italian entries with incorrect language header",
        "Italian lemmas",
        "Italian multiword terms",
        "Italian terms with quotations"
      ],
      "examples": [
        {
          "english": "The whole incident could not have taken as much as half a minute.\n(literally, “All told, the incident lasted, to exaggerate, half a minute.”)",
          "ref": "2019, George Orwell, translated by Nicola Gardini, Nineteen Eighty-Four, Mondadori",
          "text": "In tutto, l'incidente era durato, a dir tanto, mezzo minuto.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "used to suggest an overstatement"
      ],
      "links": [
        [
          "overstatement",
          "overstatement#English"
        ]
      ]
    }
  ],
  "word": "a dir tanto"
}