"donbak" meaning in English

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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "a type of goblet drum used heavily in Persian music",
          "word": "tombak"
        }
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      "glosses": [
        "Alternative form of tombak (“a type of goblet drum used heavily in Persian music”)"
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      "id": "en-donbak-en-noun-xpC1eN9h",
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          "tombak",
          "tombak#English"
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  "word": "donbak"
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      "expansion": "donbak",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "a type of goblet drum used heavily in Persian music",
          "word": "tombak"
        }
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      "glosses": [
        "Alternative form of tombak (“a type of goblet drum used heavily in Persian music”)"
      ],
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        [
          "tombak",
          "tombak#English"
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      "tags": [
        "alt-of",
        "alternative"
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  ],
  "word": "donbak"
}