"power button" meaning in English

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  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "A button that switches an electrical device on or off."
      ],
      "id": "en-power_button-en-noun-33aPUULR",
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          "langcode": "en",
          "name": "Computing",
          "orig": "en:Computing",
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            "Fundamental"
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      "glosses": [
        "A button that switches an electrical device on or off.",
        "A button that switches the computer on or off (or, on more recent models, often enables sleep mode)."
      ],
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          "button",
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          "electrical",
          "electrical"
        ],
        [
          "device",
          "device"
        ],
        [
          "computing",
          "computing#Noun"
        ],
        [
          "sleep mode",
          "sleep mode"
        ]
      ],
      "raw_glosses": [
        "A button that switches an electrical device on or off.",
        "(computing) A button that switches the computer on or off (or, on more recent models, often enables sleep mode)."
      ],
      "topics": [
        "computing",
        "engineering",
        "mathematics",
        "natural-sciences",
        "physical-sciences",
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  "word": "power button"
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  "forms": [
    {
      "form": "power buttons",
      "tags": [
        "plural"
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  "pos": "noun",
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    {
      "glosses": [
        "A button that switches an electrical device on or off."
      ],
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        [
          "button",
          "button"
        ],
        [
          "electrical",
          "electrical"
        ],
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          "device",
          "device"
        ]
      ]
    },
    {
      "categories": [
        "en:Computing"
      ],
      "glosses": [
        "A button that switches an electrical device on or off.",
        "A button that switches the computer on or off (or, on more recent models, often enables sleep mode)."
      ],
      "links": [
        [
          "button",
          "button"
        ],
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          "electrical",
          "electrical"
        ],
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          "device"
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          "computing",
          "computing#Noun"
        ],
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          "sleep mode",
          "sleep mode"
        ]
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      "raw_glosses": [
        "A button that switches an electrical device on or off.",
        "(computing) A button that switches the computer on or off (or, on more recent models, often enables sleep mode)."
      ],
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        "computing",
        "engineering",
        "mathematics",
        "natural-sciences",
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