"sniffer" meaning in English

{
  "derived": [
    {
      "_dis1": "0 0 0",
      "word": "glue sniffer"
    },
    {
      "_dis1": "0 0 0",
      "word": "jock sniffer"
    },
    {
      "_dis1": "0 0 0",
      "word": "packet sniffer"
    },
    {
      "_dis1": "0 0 0",
      "word": "people sniffer"
    },
    {
      "_dis1": "0 0 0",
      "word": "petrol sniffer"
    },
    {
      "_dis1": "0 0 0",
      "word": "posy sniffer"
    },
    {
      "_dis1": "0 0 0",
      "word": "sniffer dog"
    },
    {
      "_dis1": "0 0 0",
      "word": "sniffer plane"
    },
    {
      "_dis1": "0 0 0",
      "word": "throne sniffer"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "sniff",
        "3": "er",
        "id2": "agent noun"
      },
      "expansion": "sniff + -er",
      "name": "suf"
    }
  ],
  "etymology_text": "From sniff + -er.",
  "forms": [
    {
      "form": "sniffers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "sniffer (plural sniffers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "46 2 52",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "57 4 39",
          "kind": "other",
          "name": "English terms suffixed with -er (agent noun)",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "58 4 37",
          "kind": "other",
          "name": "Entries with translation boxes",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "59 3 38",
          "kind": "other",
          "name": "Pages with 2 entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "60 2 38",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "64 4 32",
          "kind": "other",
          "name": "Terms with Polish translations",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "67 4 29",
          "kind": "other",
          "name": "Terms with Portuguese translations",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "One who sniffs."
      ],
      "id": "en-sniffer-en-noun-BYpmN107",
      "links": [
        [
          "sniff",
          "sniff"
        ]
      ],
      "translations": [
        {
          "_dis1": "99 0 1",
          "code": "pt",
          "lang": "Portuguese",
          "sense": "one who sniffs",
          "tags": [
            "masculine"
          ],
          "word": "farejador"
        }
      ]
    },
    {
      "categories": [],
      "glosses": [
        "The nose."
      ],
      "id": "en-sniffer-en-noun-jfhNqfL-",
      "links": [
        [
          "nose",
          "nose"
        ]
      ],
      "raw_glosses": [
        "(informal) The nose."
      ],
      "tags": [
        "informal"
      ]
    },
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Networking",
          "orig": "en:Networking",
          "parents": [
            "Computing",
            "Technology",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "_dis": "46 2 52",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "A software or hardware tool for intercepting and logging network traffic."
      ],
      "id": "en-sniffer-en-noun-nDJSdqQ3",
      "links": [
        [
          "networking",
          "networking#Noun"
        ],
        [
          "software",
          "software"
        ],
        [
          "hardware",
          "hardware"
        ],
        [
          "tool",
          "tool"
        ],
        [
          "intercept",
          "intercept"
        ],
        [
          "log",
          "log"
        ],
        [
          "network",
          "network"
        ],
        [
          "traffic",
          "traffic"
        ]
      ],
      "raw_glosses": [
        "(networking) A software or hardware tool for intercepting and logging network traffic."
      ],
      "topics": [
        "computing",
        "engineering",
        "mathematics",
        "natural-sciences",
        "networking",
        "physical-sciences",
        "sciences"
      ],
      "translations": [
        {
          "_dis1": "8 0 92",
          "code": "pl",
          "lang": "Polish",
          "sense": "a mechanism for intercepting and logging network traffic",
          "tags": [
            "masculine"
          ],
          "word": "sniffer"
        },
        {
          "_dis1": "8 0 92",
          "code": "pt",
          "lang": "Portuguese",
          "sense": "a mechanism for intercepting and logging network traffic",
          "tags": [
            "masculine"
          ],
          "word": "sniffer"
        }
      ]
    }
  ],
  "word": "sniffer"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English nouns",
    "English terms suffixed with -er (agent noun)",
    "Entries with translation boxes",
    "Pages with 2 entries",
    "Pages with entries",
    "Terms with Polish translations",
    "Terms with Portuguese translations"
  ],
  "derived": [
    {
      "word": "glue sniffer"
    },
    {
      "word": "jock sniffer"
    },
    {
      "word": "packet sniffer"
    },
    {
      "word": "people sniffer"
    },
    {
      "word": "petrol sniffer"
    },
    {
      "word": "posy sniffer"
    },
    {
      "word": "sniffer dog"
    },
    {
      "word": "sniffer plane"
    },
    {
      "word": "throne sniffer"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "sniff",
        "3": "er",
        "id2": "agent noun"
      },
      "expansion": "sniff + -er",
      "name": "suf"
    }
  ],
  "etymology_text": "From sniff + -er.",
  "forms": [
    {
      "form": "sniffers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "sniffer (plural sniffers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "One who sniffs."
      ],
      "links": [
        [
          "sniff",
          "sniff"
        ]
      ]
    },
    {
      "categories": [
        "English informal terms"
      ],
      "glosses": [
        "The nose."
      ],
      "links": [
        [
          "nose",
          "nose"
        ]
      ],
      "raw_glosses": [
        "(informal) The nose."
      ],
      "tags": [
        "informal"
      ]
    },
    {
      "categories": [
        "en:Networking"
      ],
      "glosses": [
        "A software or hardware tool for intercepting and logging network traffic."
      ],
      "links": [
        [
          "networking",
          "networking#Noun"
        ],
        [
          "software",
          "software"
        ],
        [
          "hardware",
          "hardware"
        ],
        [
          "tool",
          "tool"
        ],
        [
          "intercept",
          "intercept"
        ],
        [
          "log",
          "log"
        ],
        [
          "network",
          "network"
        ],
        [
          "traffic",
          "traffic"
        ]
      ],
      "raw_glosses": [
        "(networking) A software or hardware tool for intercepting and logging network traffic."
      ],
      "topics": [
        "computing",
        "engineering",
        "mathematics",
        "natural-sciences",
        "networking",
        "physical-sciences",
        "sciences"
      ]
    }
  ],
  "translations": [
    {
      "code": "pt",
      "lang": "Portuguese",
      "sense": "one who sniffs",
      "tags": [
        "masculine"
      ],
      "word": "farejador"
    },
    {
      "code": "pl",
      "lang": "Polish",
      "sense": "a mechanism for intercepting and logging network traffic",
      "tags": [
        "masculine"
      ],
      "word": "sniffer"
    },
    {
      "code": "pt",
      "lang": "Portuguese",
      "sense": "a mechanism for intercepting and logging network traffic",
      "tags": [
        "masculine"
      ],
      "word": "sniffer"
    }
  ],
  "word": "sniffer"
}