"principle of relativity" meaning in English

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  "lang_code": "en",
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      "glosses": [
        "The principle that only the motion of objects relative to one another can be measured, and that there is no absolute frame of reference."
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      "id": "en-principle_of_relativity-en-noun-QS2bgf7k",
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          "relativity",
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          "principle",
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          "motion",
          "motion"
        ],
        [
          "absolute",
          "absolute"
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        [
          "frame of reference",
          "frame of reference"
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      "qualifier": "relativity",
      "raw_glosses": [
        "(relativity) The principle that only the motion of objects relative to one another can be measured, and that there is no absolute frame of reference."
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        {
          "word": "relativity"
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        {
          "word": "special relativity"
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        {
          "word": "general relativity"
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      "translations": [
        {
          "code": "cmn",
          "lang": "Chinese Mandarin",
          "roman": "xiāngduìxìng yuánlǐ",
          "sense": "principle that only motion of objects can be measured",
          "word": "相對性原理 /相对性原理"
        },
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "principle that only motion of objects can be measured",
          "word": "suhteellisuusperiaate"
        },
        {
          "code": "gl",
          "lang": "Galician",
          "sense": "principle that only motion of objects can be measured",
          "word": "principio da relatividade"
        },
        {
          "code": "ka",
          "lang": "Georgian",
          "roman": "pardobitobis ṗrinciṗi",
          "sense": "principle that only motion of objects can be measured",
          "word": "ფარდობითობის პრინციპი"
        }
      ]
    }
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  "word": "principle of relativity"
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        "The principle that only the motion of objects relative to one another can be measured, and that there is no absolute frame of reference."
      ],
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          "relativity"
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      "qualifier": "relativity",
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        "(relativity) The principle that only the motion of objects relative to one another can be measured, and that there is no absolute frame of reference."
      ]
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  "translations": [
    {
      "code": "cmn",
      "lang": "Chinese Mandarin",
      "roman": "xiāngduìxìng yuánlǐ",
      "sense": "principle that only motion of objects can be measured",
      "word": "相對性原理 /相对性原理"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "principle that only motion of objects can be measured",
      "word": "suhteellisuusperiaate"
    },
    {
      "code": "gl",
      "lang": "Galician",
      "sense": "principle that only motion of objects can be measured",
      "word": "principio da relatividade"
    },
    {
      "code": "ka",
      "lang": "Georgian",
      "roman": "pardobitobis ṗrinciṗi",
      "sense": "principle that only motion of objects can be measured",
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    }
  ],
  "word": "principle of relativity"
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