"side-to-side" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "side"
      },
      "expansion": "side",
      "name": "m"
    },
    {
      "args": {
        "1": "en",
        "2": "",
        "3": "to"
      },
      "expansion": "to",
      "name": "m"
    },
    {
      "args": {
        "1": "en",
        "2": "",
        "3": "side"
      },
      "expansion": "side",
      "name": "m"
    }
  ],
  "etymology_text": "side + to + side",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "side-to-side (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
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          "source": "w"
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          "parents": [
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      ],
      "examples": [
        {
          "text": "The boat rocked with a steady side-to-side motion.",
          "type": "example"
        },
        {
          "ref": "1951 October, R. S. McNaught, “Lines of Approach”, in Railway Magazine, page 706",
          "text": "It was nearly all downhill into Shrewsbury, with two intermediate stops, and a grand sequence of long curves around which Soult nuzzled her way with a quick side-to-side action.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Moving horizontally, from one side to another and back."
      ],
      "id": "en-side-to-side-en-adj-cuj-r-OY",
      "links": [
        [
          "horizontal",
          "horizontal"
        ]
      ],
      "synonyms": [
        {
          "word": "side to side"
        }
      ],
      "tags": [
        "not-comparable"
      ],
      "translations": [
        {
          "code": "de",
          "lang": "German",
          "sense": "Translations",
          "word": "seitlich hin und her"
        },
        {
          "code": "mi",
          "lang": "Maori",
          "sense": "Translations",
          "word": "whakatahataha"
        }
      ]
    }
  ],
  "word": "side-to-side"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "side"
      },
      "expansion": "side",
      "name": "m"
    },
    {
      "args": {
        "1": "en",
        "2": "",
        "3": "to"
      },
      "expansion": "to",
      "name": "m"
    },
    {
      "args": {
        "1": "en",
        "2": "",
        "3": "side"
      },
      "expansion": "side",
      "name": "m"
    }
  ],
  "etymology_text": "side + to + side",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "side-to-side (not comparable)",
      "name": "en-adj"
    }
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  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
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        "English terms with quotations",
        "English terms with usage examples",
        "English uncomparable adjectives",
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      ],
      "examples": [
        {
          "text": "The boat rocked with a steady side-to-side motion.",
          "type": "example"
        },
        {
          "ref": "1951 October, R. S. McNaught, “Lines of Approach”, in Railway Magazine, page 706",
          "text": "It was nearly all downhill into Shrewsbury, with two intermediate stops, and a grand sequence of long curves around which Soult nuzzled her way with a quick side-to-side action.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Moving horizontally, from one side to another and back."
      ],
      "links": [
        [
          "horizontal",
          "horizontal"
        ]
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "side to side"
    }
  ],
  "translations": [
    {
      "code": "de",
      "lang": "German",
      "sense": "Translations",
      "word": "seitlich hin und her"
    },
    {
      "code": "mi",
      "lang": "Maori",
      "sense": "Translations",
      "word": "whakatahataha"
    }
  ],
  "word": "side-to-side"
}