"engine knock" meaning in All languages combined

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      "expansion": "engine knock (uncountable)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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          "name": "English entries with incorrect language header",
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          "ref": "2025 September 11, Kate Marvel, “‘We’ve done it before’: how not to lose hope in the fight against ecological disaster”, in The Guardian:",
          "text": "Once leaded fuel solved the problem of engine knock, cars quickly displaced horses and motorised transportation took over the world.",
          "type": "quotation"
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      ],
      "glosses": [
        "a rattling, pinging, or tapping sound caused by improper combustion, where the air-fuel mixture ignites spontaneously in the cylinders before the spark plug fires, or in multiple spots simultaneously"
      ],
      "id": "en-engine_knock-en-noun-rns15BUS",
      "links": [
        [
          "rattling",
          "rattling"
        ],
        [
          "pinging",
          "pinging"
        ],
        [
          "tapping",
          "tapping"
        ],
        [
          "spark plug",
          "spark plug"
        ]
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      "tags": [
        "uncountable"
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  "word": "engine knock"
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      "expansion": "engine knock (uncountable)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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          "text": "Once leaded fuel solved the problem of engine knock, cars quickly displaced horses and motorised transportation took over the world.",
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        "a rattling, pinging, or tapping sound caused by improper combustion, where the air-fuel mixture ignites spontaneously in the cylinders before the spark plug fires, or in multiple spots simultaneously"
      ],
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        [
          "rattling",
          "rattling"
        ],
        [
          "pinging",
          "pinging"
        ],
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          "tapping",
          "tapping"
        ],
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          "spark plug",
          "spark plug"
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      "tags": [
        "uncountable"
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  "word": "engine knock"
}