"closed-source" meaning in English

{
  "antonyms": [
    {
      "word": "open-source"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "closed",
        "3": "source"
      },
      "expansion": "closed + source",
      "name": "compound"
    }
  ],
  "etymology_text": "From closed + source, in reference to source code.",
  "forms": [
    {
      "form": "closed source",
      "tags": [
        "alternative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "closed-source (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Entries with translation boxes",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Arabic translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Bulgarian translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Greek translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Spanish translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "en",
          "name": "Software",
          "orig": "en:Software",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Whose constituent makeup, or source code, is not made publicly available."
      ],
      "id": "en-closed-source-en-adj-ylAAGzWI",
      "links": [
        [
          "software",
          "software"
        ],
        [
          "source code",
          "source code"
        ]
      ],
      "raw_glosses": [
        "(chiefly software) Whose constituent makeup, or source code, is not made publicly available."
      ],
      "tags": [
        "not-comparable"
      ],
      "topics": [
        "computing",
        "engineering",
        "mathematics",
        "natural-sciences",
        "physical-sciences",
        "sciences",
        "software"
      ],
      "translations": [
        {
          "code": "ar",
          "lang": "Arabic",
          "lang_code": "ar",
          "roman": "muḡlaq al-maṣdar",
          "sense": "Translations",
          "word": "مُغْلَق الْمَصْدَر"
        },
        {
          "code": "bg",
          "lang": "Bulgarian",
          "lang_code": "bg",
          "roman": "săs zatvoren kod",
          "sense": "Translations",
          "word": "със затворен код"
        },
        {
          "code": "el",
          "lang": "Greek",
          "lang_code": "el",
          "roman": "kleistós kódikas",
          "sense": "Translations",
          "word": "κλειστός κώδικας"
        },
        {
          "code": "es",
          "lang": "Spanish",
          "lang_code": "es",
          "sense": "Translations",
          "tags": [
            "masculine"
          ],
          "word": "código cerrado"
        }
      ]
    }
  ],
  "word": "closed-source"
}

{
  "antonyms": [
    {
      "word": "open-source"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "closed",
        "3": "source"
      },
      "expansion": "closed + source",
      "name": "compound"
    }
  ],
  "etymology_text": "From closed + source, in reference to source code.",
  "forms": [
    {
      "form": "closed source",
      "tags": [
        "alternative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "closed-source (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "English adjectives",
        "English compound terms",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English uncomparable adjectives",
        "Entries with translation boxes",
        "Pages with 1 entry",
        "Pages with entries",
        "Terms with Arabic translations",
        "Terms with Bulgarian translations",
        "Terms with Greek translations",
        "Terms with Spanish translations",
        "Translation table header lacks gloss",
        "en:Software"
      ],
      "glosses": [
        "Whose constituent makeup, or source code, is not made publicly available."
      ],
      "links": [
        [
          "software",
          "software"
        ],
        [
          "source code",
          "source code"
        ]
      ],
      "raw_glosses": [
        "(chiefly software) Whose constituent makeup, or source code, is not made publicly available."
      ],
      "tags": [
        "not-comparable"
      ],
      "topics": [
        "computing",
        "engineering",
        "mathematics",
        "natural-sciences",
        "physical-sciences",
        "sciences",
        "software"
      ]
    }
  ],
  "translations": [
    {
      "code": "ar",
      "lang": "Arabic",
      "lang_code": "ar",
      "roman": "muḡlaq al-maṣdar",
      "sense": "Translations",
      "word": "مُغْلَق الْمَصْدَر"
    },
    {
      "code": "bg",
      "lang": "Bulgarian",
      "lang_code": "bg",
      "roman": "săs zatvoren kod",
      "sense": "Translations",
      "word": "със затворен код"
    },
    {
      "code": "el",
      "lang": "Greek",
      "lang_code": "el",
      "roman": "kleistós kódikas",
      "sense": "Translations",
      "word": "κλειστός κώδικας"
    },
    {
      "code": "es",
      "lang": "Spanish",
      "lang_code": "es",
      "sense": "Translations",
      "tags": [
        "masculine"
      ],
      "word": "código cerrado"
    }
  ],
  "word": "closed-source"
}