"fifth columnist" meaning in English

{
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        "1": "en",
        "2": "fifth column",
        "3": "ist"
      },
      "expansion": "fifth column + -ist",
      "name": "suffix"
    }
  ],
  "etymology_text": "From fifth column + -ist.",
  "forms": [
    {
      "form": "fifth columnists",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "fifth columnist (plural fifth columnists)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
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          "source": "w"
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          "name": "English terms suffixed with -ist",
          "parents": [],
          "source": "w"
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        {
          "kind": "other",
          "name": "Entries with translation boxes",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
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        },
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          "kind": "other",
          "name": "Pages with entries",
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          "source": "w"
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          "parents": [],
          "source": "w"
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          "parents": [],
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          "name": "Terms with Norwegian Bokmål translations",
          "parents": [],
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          "name": "Terms with Portuguese translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Swedish translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "People",
          "orig": "en:People",
          "parents": [
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "someone who belongs to a group that secretly undermines another organization"
      ],
      "id": "en-fifth_columnist-en-noun-xjQD3Wav",
      "links": [
        [
          "undermine",
          "undermine"
        ],
        [
          "organization",
          "organization"
        ]
      ],
      "translations": [
        {
          "code": "ca",
          "lang": "Catalan",
          "sense": "a member of a fifth column",
          "tags": [
            "feminine",
            "masculine"
          ],
          "word": "quintacolumnista"
        },
        {
          "code": "da",
          "lang": "Danish",
          "sense": "a member of a fifth column",
          "tags": [
            "common-gender"
          ],
          "word": "femtekolonnemand"
        },
        {
          "code": "mk",
          "lang": "Macedonian",
          "roman": "pettokolonáš",
          "sense": "a member of a fifth column",
          "tags": [
            "masculine"
          ],
          "word": "петтоколона́ш"
        },
        {
          "code": "nb",
          "lang": "Norwegian Bokmål",
          "sense": "a member of a fifth column",
          "tags": [
            "masculine"
          ],
          "word": "femtekolonnist"
        },
        {
          "code": "pt",
          "lang": "Portuguese",
          "sense": "a member of a fifth column",
          "tags": [
            "feminine",
            "masculine"
          ],
          "word": "quinta-colunista"
        },
        {
          "code": "sv",
          "lang": "Swedish",
          "sense": "a member of a fifth column",
          "tags": [
            "common-gender"
          ],
          "word": "femtekolonnare"
        },
        {
          "code": "sv",
          "lang": "Swedish",
          "sense": "a member of a fifth column",
          "tags": [
            "common-gender"
          ],
          "word": "quisling"
        },
        {
          "code": "sv",
          "lang": "Swedish",
          "sense": "a member of a fifth column",
          "tags": [
            "common-gender"
          ],
          "word": "kollaboratör"
        }
      ]
    }
  ],
  "word": "fifth columnist"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "fifth column",
        "3": "ist"
      },
      "expansion": "fifth column + -ist",
      "name": "suffix"
    }
  ],
  "etymology_text": "From fifth column + -ist.",
  "forms": [
    {
      "form": "fifth columnists",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "fifth columnist (plural fifth columnists)",
      "name": "en-noun"
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  "lang_code": "en",
  "pos": "noun",
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        "English entries with incorrect language header",
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        "Terms with Danish translations",
        "Terms with Macedonian translations",
        "Terms with Norwegian Bokmål translations",
        "Terms with Portuguese translations",
        "Terms with Swedish translations",
        "en:People"
      ],
      "glosses": [
        "someone who belongs to a group that secretly undermines another organization"
      ],
      "links": [
        [
          "undermine",
          "undermine"
        ],
        [
          "organization",
          "organization"
        ]
      ]
    }
  ],
  "translations": [
    {
      "code": "ca",
      "lang": "Catalan",
      "sense": "a member of a fifth column",
      "tags": [
        "feminine",
        "masculine"
      ],
      "word": "quintacolumnista"
    },
    {
      "code": "da",
      "lang": "Danish",
      "sense": "a member of a fifth column",
      "tags": [
        "common-gender"
      ],
      "word": "femtekolonnemand"
    },
    {
      "code": "mk",
      "lang": "Macedonian",
      "roman": "pettokolonáš",
      "sense": "a member of a fifth column",
      "tags": [
        "masculine"
      ],
      "word": "петтоколона́ш"
    },
    {
      "code": "nb",
      "lang": "Norwegian Bokmål",
      "sense": "a member of a fifth column",
      "tags": [
        "masculine"
      ],
      "word": "femtekolonnist"
    },
    {
      "code": "pt",
      "lang": "Portuguese",
      "sense": "a member of a fifth column",
      "tags": [
        "feminine",
        "masculine"
      ],
      "word": "quinta-colunista"
    },
    {
      "code": "sv",
      "lang": "Swedish",
      "sense": "a member of a fifth column",
      "tags": [
        "common-gender"
      ],
      "word": "femtekolonnare"
    },
    {
      "code": "sv",
      "lang": "Swedish",
      "sense": "a member of a fifth column",
      "tags": [
        "common-gender"
      ],
      "word": "quisling"
    },
    {
      "code": "sv",
      "lang": "Swedish",
      "sense": "a member of a fifth column",
      "tags": [
        "common-gender"
      ],
      "word": "kollaboratör"
    }
  ],
  "word": "fifth columnist"
}