"viper" meaning in English

{
  "forms": [
    {
      "form": "viper",
      "tags": [
        "singular"
      ]
    },
    {
      "form": "vipers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "expansion": "[POS TABLE]",
      "name": "noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "examples": [
        {
          "text": "Don't walk in the bush unprotected, you may be bitten by an viper!"
        }
      ],
      "glosses": [
        "A viper is a short, rather massive poisonous snake with long front teeth that poison its victims by biting them."
      ],
      "id": "simple-viper-en-noun-2Fkfkb~I",
      "synonyms": [
        {
          "word": "adder"
        }
      ]
    },
    {
      "examples": [
        {
          "text": "This viper of a man will turn all of us mad!"
        }
      ],
      "glosses": [
        "A viper can also be a person who says bad things on other people."
      ],
      "id": "simple-viper-en-noun-vQnfyHDh",
      "raw_tags": [
        "pejorative, metaphorical"
      ]
    },
    {
      "glosses": [
        "Viper is a type of car model."
      ],
      "id": "simple-viper-en-noun-x76wDniK"
    }
  ],
  "word": "viper"
}

{
  "forms": [
    {
      "form": "viper",
      "tags": [
        "singular"
      ]
    },
    {
      "form": "vipers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "expansion": "[POS TABLE]",
      "name": "noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "examples": [
        {
          "text": "Don't walk in the bush unprotected, you may be bitten by an viper!"
        }
      ],
      "glosses": [
        "A viper is a short, rather massive poisonous snake with long front teeth that poison its victims by biting them."
      ],
      "synonyms": [
        {
          "word": "adder"
        }
      ]
    },
    {
      "examples": [
        {
          "text": "This viper of a man will turn all of us mad!"
        }
      ],
      "glosses": [
        "A viper can also be a person who says bad things on other people."
      ],
      "raw_tags": [
        "pejorative, metaphorical"
      ]
    },
    {
      "glosses": [
        "Viper is a type of car model."
      ]
    }
  ],
  "word": "viper"
}