"optional" meaning in Italian

{
  "etymology_templates": [
    {
      "args": {
        "1": "it",
        "2": "en",
        "3": "optional"
      },
      "expansion": "Borrowed from English optional",
      "name": "bor+"
    }
  ],
  "etymology_text": "Borrowed from English optional.",
  "head_templates": [
    {
      "args": {
        "1": "m",
        "2": "#"
      },
      "expansion": "optional m (invariable)",
      "name": "it-noun"
    }
  ],
  "lang": "Italian",
  "lang_code": "it",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "75 25",
          "kind": "other",
          "name": "Italian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "optional accessory"
      ],
      "id": "en-optional-it-noun-AEEx8e-z",
      "links": [
        [
          "optional",
          "optional#English"
        ],
        [
          "accessory",
          "accessory"
        ]
      ],
      "tags": [
        "invariable",
        "masculine"
      ]
    },
    {
      "glosses": [
        "handicap (horse racing)"
      ],
      "id": "en-optional-it-noun-cYIvQEjw",
      "links": [
        [
          "handicap",
          "handicap"
        ]
      ],
      "tags": [
        "invariable",
        "masculine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈɔp.ʃo.nal/"
    },
    {
      "rhymes": "-ɔpʃonal"
    }
  ],
  "word": "optional"
}

{
  "categories": [
    "Italian 3-syllable words",
    "Italian countable nouns",
    "Italian entries with incorrect language header",
    "Italian indeclinable nouns",
    "Italian lemmas",
    "Italian masculine nouns",
    "Italian nouns",
    "Italian terms borrowed from English",
    "Italian terms derived from English",
    "Italian terms with IPA pronunciation",
    "Pages with 3 entries",
    "Pages with entries",
    "Rhymes:Italian/ɔpʃonal",
    "Rhymes:Italian/ɔpʃonal/3 syllables"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "it",
        "2": "en",
        "3": "optional"
      },
      "expansion": "Borrowed from English optional",
      "name": "bor+"
    }
  ],
  "etymology_text": "Borrowed from English optional.",
  "head_templates": [
    {
      "args": {
        "1": "m",
        "2": "#"
      },
      "expansion": "optional m (invariable)",
      "name": "it-noun"
    }
  ],
  "lang": "Italian",
  "lang_code": "it",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "optional accessory"
      ],
      "links": [
        [
          "optional",
          "optional#English"
        ],
        [
          "accessory",
          "accessory"
        ]
      ],
      "tags": [
        "invariable",
        "masculine"
      ]
    },
    {
      "glosses": [
        "handicap (horse racing)"
      ],
      "links": [
        [
          "handicap",
          "handicap"
        ]
      ],
      "tags": [
        "invariable",
        "masculine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈɔp.ʃo.nal/"
    },
    {
      "rhymes": "-ɔpʃonal"
    }
  ],
  "word": "optional"
}