"second-class citizen" meaning in English

{
  "forms": [
    {
      "form": "second-class citizens",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "second-class citizen (plural second-class citizens)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "78 22",
          "kind": "topical",
          "langcode": "en",
          "name": "People",
          "orig": "en:People",
          "parents": [
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "A member of a class of individuals that receive inferior treatment."
      ],
      "id": "en-second-class_citizen-en-noun-sLUao2Yh"
    },
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Programming",
          "orig": "en:Programming",
          "parents": [
            "Computing",
            "Software engineering",
            "Technology",
            "Computer science",
            "Engineering",
            "Software",
            "All topics",
            "Sciences",
            "Applied sciences",
            "Media",
            "Fundamental",
            "Communication"
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          "source": "w"
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          "_dis": "17 83",
          "kind": "other",
          "name": "English entries with incorrect language header",
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            "Entry maintenance"
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          "source": "w+disamb"
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          "_dis": "15 85",
          "kind": "other",
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          "parents": [
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            "Entry maintenance"
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          "source": "w+disamb"
        },
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          "_dis": "16 84",
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
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          "source": "w+disamb"
        },
        {
          "_dis": "9 91",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "Synonym of second-class object"
      ],
      "id": "en-second-class_citizen-en-noun-nwCJI4US",
      "links": [
        [
          "programming",
          "programming#Noun"
        ],
        [
          "second-class object",
          "second-class object#English"
        ]
      ],
      "qualifier": "programming languages",
      "raw_glosses": [
        "(programming languages) Synonym of second-class object"
      ],
      "synonyms": [
        {
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "second-class object"
        }
      ]
    }
  ],
  "word": "second-class citizen"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English entries with topic categories using raw markup",
    "English lemmas",
    "English multiword terms",
    "English nouns",
    "English terms with non-redundant non-automated sortkeys",
    "Pages with 1 entry",
    "en:People"
  ],
  "forms": [
    {
      "form": "second-class citizens",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "second-class citizen (plural second-class citizens)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "A member of a class of individuals that receive inferior treatment."
      ]
    },
    {
      "categories": [
        "en:Programming"
      ],
      "glosses": [
        "Synonym of second-class object"
      ],
      "links": [
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          "programming",
          "programming#Noun"
        ],
        [
          "second-class object",
          "second-class object#English"
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        "(programming languages) Synonym of second-class object"
      ],
      "synonyms": [
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          "word": "second-class object"
        }
      ]
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  ],
  "word": "second-class citizen"
}