"undercover" meaning in English

{
  "categories": [
    {
      "kind": "other",
      "name": "Terms prefixed with under-",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "under",
        "2": "cover"
      },
      "expansion": "under- + cover",
      "name": "ety-prefix"
    }
  ],
  "etymology_text": "under- + cover",
  "forms": [
    {
      "form": "undercover",
      "tags": [
        "positive"
      ]
    },
    {
      "form": "more undercover",
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "most undercover",
      "tags": [
        "superlative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "more": "true"
      },
      "expansion": "[POS TABLE]",
      "name": "adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "examples": [
        {
          "text": "We're planning an undercover operation to try to catch those people."
        }
      ],
      "glosses": [
        "An action or person is undercover if it is hidden or secret: the people doing it don't want other people to know about it."
      ],
      "id": "simple-undercover-en-adj-bUfUO-8C"
    },
    {
      "examples": [
        {
          "text": "We sent three undercover agents to that country to try to find out what their government plans to do."
        }
      ],
      "glosses": [
        "Something is undercover if it involves spying."
      ],
      "id": "simple-undercover-en-adj-2pwVpOcc"
    }
  ],
  "sounds": [
    {
      "ipa": "/ˌʌndə(r)ˈkʌvə(r)/"
    },
    {
      "audio": "LL-Q1860 (eng)-Vealhurl-undercover.wav",
      "raw_tags": [
        "Audio"
      ],
      "tags": [
        "UK"
      ]
    }
  ],
  "word": "undercover"
}

{
  "categories": [
    "Terms prefixed with under-"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "under",
        "2": "cover"
      },
      "expansion": "under- + cover",
      "name": "ety-prefix"
    }
  ],
  "etymology_text": "under- + cover",
  "forms": [
    {
      "form": "undercover",
      "tags": [
        "positive"
      ]
    },
    {
      "form": "more undercover",
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "most undercover",
      "tags": [
        "superlative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "more": "true"
      },
      "expansion": "[POS TABLE]",
      "name": "adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "examples": [
        {
          "text": "We're planning an undercover operation to try to catch those people."
        }
      ],
      "glosses": [
        "An action or person is undercover if it is hidden or secret: the people doing it don't want other people to know about it."
      ]
    },
    {
      "examples": [
        {
          "text": "We sent three undercover agents to that country to try to find out what their government plans to do."
        }
      ],
      "glosses": [
        "Something is undercover if it involves spying."
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˌʌndə(r)ˈkʌvə(r)/"
    },
    {
      "audio": "LL-Q1860 (eng)-Vealhurl-undercover.wav",
      "raw_tags": [
        "Audio"
      ],
      "tags": [
        "UK"
      ]
    }
  ],
  "word": "undercover"
}