"fact checker" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "fact check",
        "3": "-er",
        "id2": "agent noun",
        "pos1": "verb"
      },
      "expansion": "fact check (verb) + -er",
      "name": "af"
    }
  ],
  "etymology_text": "From fact check (verb) + -er.",
  "forms": [
    {
      "form": "fact checkers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "fact checker (plural fact checkers)",
      "name": "en-noun"
    }
  ],
  "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 -er (agent noun)",
          "parents": [],
          "source": "w"
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          "kind": "other",
          "name": "Entries with translation boxes",
          "parents": [],
          "source": "w"
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          "parents": [],
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          "parents": [],
          "source": "w"
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          "name": "Terms with Dutch translations",
          "parents": [],
          "source": "w"
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          "parents": [],
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          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Spanish translations",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "One who fact checks."
      ],
      "id": "en-fact_checker-en-noun-1zfl06vs",
      "links": [
        [
          "fact check",
          "fact check"
        ]
      ],
      "synonyms": [
        {
          "word": "fact-checker"
        }
      ],
      "translations": [
        {
          "code": "nl",
          "lang": "Dutch",
          "sense": "one who fact checks",
          "word": "feitenchecker"
        },
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "one who fact checks",
          "word": "faktantarkistaja"
        },
        {
          "code": "de",
          "lang": "German",
          "sense": "one who fact checks",
          "tags": [
            "masculine"
          ],
          "word": "Faktenprüfer"
        },
        {
          "code": "de",
          "lang": "German",
          "sense": "one who fact checks",
          "tags": [
            "feminine"
          ],
          "word": "Faktenprüferin"
        },
        {
          "code": "es",
          "lang": "Spanish",
          "sense": "one who fact checks",
          "tags": [
            "masculine"
          ],
          "word": "verificador"
        },
        {
          "code": "es",
          "lang": "Spanish",
          "sense": "one who fact checks",
          "tags": [
            "feminine"
          ],
          "word": "verificadora"
        }
      ]
    }
  ],
  "word": "fact checker"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "fact check",
        "3": "-er",
        "id2": "agent noun",
        "pos1": "verb"
      },
      "expansion": "fact check (verb) + -er",
      "name": "af"
    }
  ],
  "etymology_text": "From fact check (verb) + -er.",
  "forms": [
    {
      "form": "fact checkers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "fact checker (plural fact checkers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms suffixed with -er (agent noun)",
        "Entries with translation boxes",
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        "Pages with entries",
        "Terms with Dutch translations",
        "Terms with Finnish translations",
        "Terms with German translations",
        "Terms with Spanish translations"
      ],
      "glosses": [
        "One who fact checks."
      ],
      "links": [
        [
          "fact check",
          "fact check"
        ]
      ]
    }
  ],
  "synonyms": [
    {
      "word": "fact-checker"
    }
  ],
  "translations": [
    {
      "code": "nl",
      "lang": "Dutch",
      "sense": "one who fact checks",
      "word": "feitenchecker"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "one who fact checks",
      "word": "faktantarkistaja"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "one who fact checks",
      "tags": [
        "masculine"
      ],
      "word": "Faktenprüfer"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "one who fact checks",
      "tags": [
        "feminine"
      ],
      "word": "Faktenprüferin"
    },
    {
      "code": "es",
      "lang": "Spanish",
      "sense": "one who fact checks",
      "tags": [
        "masculine"
      ],
      "word": "verificador"
    },
    {
      "code": "es",
      "lang": "Spanish",
      "sense": "one who fact checks",
      "tags": [
        "feminine"
      ],
      "word": "verificadora"
    }
  ],
  "word": "fact checker"
}