"grr" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en"
      },
      "expansion": "Onomatopoeic",
      "name": "onomatopoeic"
    }
  ],
  "etymology_text": "Onomatopoeic.",
  "head_templates": [
    {
      "args": {},
      "expansion": "grr",
      "name": "en-interj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "intj",
  "senses": [
    {
      "categories": [
        {
          "_dis": "78 22",
          "kind": "topical",
          "langcode": "en",
          "name": "Animal sounds",
          "orig": "en:Animal sounds",
          "parents": [
            "Sounds",
            "Vocalizations",
            "Sound",
            "Communication",
            "Energy",
            "All topics",
            "Nature",
            "Fundamental"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "Sound of an animal growl."
      ],
      "id": "en-grr-en-intj-KXxkA~-8",
      "links": [
        [
          "growl",
          "growl#English"
        ]
      ]
    },
    {
      "categories": [
        {
          "_dis": "28 72",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "20 80",
          "kind": "other",
          "name": "English entries with language name categories using raw markup",
          "parents": [
            "Entries with language name categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "23 77",
          "kind": "other",
          "name": "English entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "18 82",
          "kind": "other",
          "name": "English onomatopoeias",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "examples": [
        {
          "text": "Grr, life is not fair.",
          "type": "example"
        }
      ],
      "glosses": [
        "Expression of anger or disappointment."
      ],
      "id": "en-grr-en-intj-C6KG8Yki",
      "links": [
        [
          "anger",
          "anger#English"
        ],
        [
          "disappointment",
          "disappointment#English"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ɡɚːː]"
    },
    {
      "rhymes": "-ɜː(ɹ)"
    },
    {
      "audio": "en-us-grr.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/2/2c/En-us-grr.ogg/En-us-grr.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/2/2c/En-us-grr.ogg",
      "tags": [
        "US"
      ],
      "text": "Audio (US)"
    }
  ],
  "synonyms": [
    {
      "_dis1": "0 0",
      "word": "grrr"
    },
    {
      "_dis1": "0 0",
      "english": "and so on, depending on length or ferocity",
      "word": "grrrr"
    },
    {
      "_dis1": "0 0",
      "word": "grrrh"
    }
  ],
  "word": "grr"
}

{
  "categories": [
    "English entries with incorrect language header",
    "English entries with language name categories using raw markup",
    "English entries with topic categories using raw markup",
    "English interjections",
    "English lemmas",
    "English onomatopoeias",
    "English terms with IPA pronunciation",
    "English terms with audio links",
    "English words without vowels",
    "Rhymes:English/ɜː(ɹ)",
    "Rhymes:English/ɜː(ɹ)/1 syllable",
    "en:Animal sounds"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en"
      },
      "expansion": "Onomatopoeic",
      "name": "onomatopoeic"
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  ],
  "etymology_text": "Onomatopoeic.",
  "head_templates": [
    {
      "args": {},
      "expansion": "grr",
      "name": "en-interj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "intj",
  "senses": [
    {
      "glosses": [
        "Sound of an animal growl."
      ],
      "links": [
        [
          "growl",
          "growl#English"
        ]
      ]
    },
    {
      "categories": [
        "English terms with usage examples"
      ],
      "examples": [
        {
          "text": "Grr, life is not fair.",
          "type": "example"
        }
      ],
      "glosses": [
        "Expression of anger or disappointment."
      ],
      "links": [
        [
          "anger",
          "anger#English"
        ],
        [
          "disappointment",
          "disappointment#English"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ɡɚːː]"
    },
    {
      "rhymes": "-ɜː(ɹ)"
    },
    {
      "audio": "en-us-grr.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/2/2c/En-us-grr.ogg/En-us-grr.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/2/2c/En-us-grr.ogg",
      "tags": [
        "US"
      ],
      "text": "Audio (US)"
    }
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  "synonyms": [
    {
      "word": "grrr"
    },
    {
      "english": "and so on, depending on length or ferocity",
      "word": "grrrr"
    },
    {
      "word": "grrrh"
    }
  ],
  "word": "grr"
}