"xi" meaning in Italian

{
  "etymology_templates": [
    {
      "args": {
        "1": "it",
        "2": "grc",
        "3": "ξεῖ"
      },
      "expansion": "Ancient Greek ξεῖ (xeî)",
      "name": "der"
    }
  ],
  "etymology_text": "From Ancient Greek ξεῖ (xeî), ξῖ (xî).",
  "head_templates": [
    {
      "args": {
        "1": "mf",
        "2": "#"
      },
      "expansion": "xi m or f (invariable)",
      "name": "it-noun"
    }
  ],
  "hyphenation": [
    "xì"
  ],
  "lang": "Italian",
  "lang_code": "it",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "50 50",
          "kind": "other",
          "name": "Italian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "50 50",
          "kind": "topical",
          "langcode": "it",
          "name": "Greek letter names",
          "orig": "it:Greek letter names",
          "parents": [
            "Letter names",
            "Letters, symbols, and punctuation",
            "Names",
            "Orthography",
            "All topics",
            "Proper nouns",
            "Terms by semantic function",
            "Writing",
            "Fundamental",
            "Nouns",
            "Human behaviour",
            "Language",
            "Lemmas",
            "Human",
            "Communication"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "the name of the Greek-script letter Ξ/ξ"
      ],
      "id": "en-xi-it-noun-yoU8MOfx",
      "links": [
        [
          "Greek-script",
          "Appendix:Greek script#English"
        ],
        [
          "Ξ",
          "Ξ"
        ],
        [
          "ξ",
          "ξ"
        ]
      ],
      "tags": [
        "feminine",
        "invariable",
        "masculine"
      ]
    },
    {
      "categories": [
        {
          "_dis": "50 50",
          "kind": "other",
          "name": "Italian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "50 50",
          "kind": "topical",
          "langcode": "it",
          "name": "Greek letter names",
          "orig": "it:Greek letter names",
          "parents": [
            "Letter names",
            "Letters, symbols, and punctuation",
            "Names",
            "Orthography",
            "All topics",
            "Proper nouns",
            "Terms by semantic function",
            "Writing",
            "Fundamental",
            "Nouns",
            "Human behaviour",
            "Language",
            "Lemmas",
            "Human",
            "Communication"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "the name of the Greek-script letter Ξ/ξ",
        "xi (all senses)"
      ],
      "id": "en-xi-it-noun-J8Bm7yib",
      "links": [
        [
          "Greek-script",
          "Appendix:Greek script#English"
        ],
        [
          "Ξ",
          "Ξ"
        ],
        [
          "ξ",
          "ξ"
        ],
        [
          "xi",
          "xi#Italian"
        ]
      ],
      "tags": [
        "feminine",
        "invariable",
        "masculine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈksi/"
    },
    {
      "rhymes": "-i"
    }
  ],
  "synonyms": [
    {
      "_dis1": "0 0",
      "word": "csi"
    },
    {
      "_dis1": "0 0",
      "word": "ksi"
    }
  ],
  "word": "xi"
}

{
  "categories": [
    "Italian 1-syllable words",
    "Italian countable nouns",
    "Italian entries with incorrect language header",
    "Italian feminine nouns",
    "Italian indeclinable nouns",
    "Italian lemmas",
    "Italian masculine nouns",
    "Italian nouns",
    "Italian nouns with multiple genders",
    "Italian terms derived from Ancient Greek",
    "Italian terms spelled with X",
    "Italian terms with IPA pronunciation",
    "Pages with 11 entries",
    "Pages with entries",
    "Rhymes:Italian/i",
    "Rhymes:Italian/i/1 syllable",
    "it:Greek letter names"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "it",
        "2": "grc",
        "3": "ξεῖ"
      },
      "expansion": "Ancient Greek ξεῖ (xeî)",
      "name": "der"
    }
  ],
  "etymology_text": "From Ancient Greek ξεῖ (xeî), ξῖ (xî).",
  "head_templates": [
    {
      "args": {
        "1": "mf",
        "2": "#"
      },
      "expansion": "xi m or f (invariable)",
      "name": "it-noun"
    }
  ],
  "hyphenation": [
    "xì"
  ],
  "lang": "Italian",
  "lang_code": "it",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "the name of the Greek-script letter Ξ/ξ"
      ],
      "links": [
        [
          "Greek-script",
          "Appendix:Greek script#English"
        ],
        [
          "Ξ",
          "Ξ"
        ],
        [
          "ξ",
          "ξ"
        ]
      ],
      "tags": [
        "feminine",
        "invariable",
        "masculine"
      ]
    },
    {
      "glosses": [
        "the name of the Greek-script letter Ξ/ξ",
        "xi (all senses)"
      ],
      "links": [
        [
          "Greek-script",
          "Appendix:Greek script#English"
        ],
        [
          "Ξ",
          "Ξ"
        ],
        [
          "ξ",
          "ξ"
        ],
        [
          "xi",
          "xi#Italian"
        ]
      ],
      "tags": [
        "feminine",
        "invariable",
        "masculine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈksi/"
    },
    {
      "rhymes": "-i"
    }
  ],
  "synonyms": [
    {
      "word": "csi"
    },
    {
      "word": "ksi"
    }
  ],
  "word": "xi"
}