"OS X" meaning in English

{
  "etymology_text": "Ellipsis of Mac OS X; from OS (“operating system”) + X (“ten”, Roman numeral), as a successor to Mac OS 9.",
  "head_templates": [
    {
      "args": {
        "head": "OS X"
      },
      "expansion": "OS X",
      "name": "en-proper noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English trademarks",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Apple Inc.",
          "orig": "en:Apple Inc.",
          "parents": [
            "Computing",
            "Technology",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Computing",
          "orig": "en:Computing",
          "parents": [
            "Technology",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Former name of macOS; itself formerly known as Mac OS X."
      ],
      "id": "en-OS_X-en-name-KMDn-bSV",
      "links": [
        [
          "computing",
          "computing#Noun"
        ],
        [
          "trademark",
          "trademark"
        ],
        [
          "macOS",
          "macOS#English"
        ]
      ],
      "qualifier": "trademark",
      "raw_glosses": [
        "(computing, trademark) Former name of macOS; itself formerly known as Mac OS X."
      ],
      "topics": [
        "computing",
        "engineering",
        "mathematics",
        "natural-sciences",
        "physical-sciences",
        "sciences"
      ],
      "wikipedia": [
        "Mac OS 9"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/əʊˌɛsˈtɛn/",
      "tags": [
        "Received-Pronunciation"
      ]
    },
    {
      "ipa": "/oʊˌɛsˈtɛn/",
      "tags": [
        "General-American"
      ]
    },
    {
      "ipa": "/əʊˌɛsˈɛks/",
      "tags": [
        "Received-Pronunciation",
        "nonstandard"
      ]
    },
    {
      "ipa": "/oʊˌɛsˈɛks/",
      "tags": [
        "General-American",
        "nonstandard"
      ]
    }
  ],
  "word": "OS X"
}

{
  "etymology_text": "Ellipsis of Mac OS X; from OS (“operating system”) + X (“ten”, Roman numeral), as a successor to Mac OS 9.",
  "head_templates": [
    {
      "args": {
        "head": "OS X"
      },
      "expansion": "OS X",
      "name": "en-proper noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English proper nouns",
        "English terms containing Roman numerals",
        "English trademarks",
        "English uncountable nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Apple Inc.",
        "en:Computing"
      ],
      "glosses": [
        "Former name of macOS; itself formerly known as Mac OS X."
      ],
      "links": [
        [
          "computing",
          "computing#Noun"
        ],
        [
          "trademark",
          "trademark"
        ],
        [
          "macOS",
          "macOS#English"
        ]
      ],
      "qualifier": "trademark",
      "raw_glosses": [
        "(computing, trademark) Former name of macOS; itself formerly known as Mac OS X."
      ],
      "topics": [
        "computing",
        "engineering",
        "mathematics",
        "natural-sciences",
        "physical-sciences",
        "sciences"
      ],
      "wikipedia": [
        "Mac OS 9"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/əʊˌɛsˈtɛn/",
      "tags": [
        "Received-Pronunciation"
      ]
    },
    {
      "ipa": "/oʊˌɛsˈtɛn/",
      "tags": [
        "General-American"
      ]
    },
    {
      "ipa": "/əʊˌɛsˈɛks/",
      "tags": [
        "Received-Pronunciation",
        "nonstandard"
      ]
    },
    {
      "ipa": "/oʊˌɛsˈɛks/",
      "tags": [
        "General-American",
        "nonstandard"
      ]
    }
  ],
  "word": "OS X"
}