"rail saver" meaning in English

{
  "forms": [
    {
      "form": "rail savers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "rail saver (plural rail savers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Surfing",
          "orig": "en:Surfing",
          "parents": [
            "Water sports",
            "Sports",
            "Human activity",
            "Human behaviour",
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A piece of fabric at the point where the leg rope is attached to the surfboard, to protect the rail when the rope is pulled taut."
      ],
      "id": "en-rail_saver-en-noun-QCkwygT7",
      "links": [
        [
          "surfing",
          "surfing#Noun"
        ],
        [
          "fabric",
          "fabric"
        ],
        [
          "leg rope",
          "leg rope"
        ],
        [
          "surfboard",
          "surfboard"
        ],
        [
          "rail",
          "rail"
        ],
        [
          "taut",
          "taut"
        ]
      ],
      "raw_glosses": [
        "(surfing) A piece of fabric at the point where the leg rope is attached to the surfboard, to protect the rail when the rope is pulled taut."
      ],
      "topics": [
        "hobbies",
        "lifestyle",
        "sports",
        "surfing"
      ]
    }
  ],
  "word": "rail saver"
}

{
  "forms": [
    {
      "form": "rail savers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "rail saver (plural rail savers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Surfing"
      ],
      "glosses": [
        "A piece of fabric at the point where the leg rope is attached to the surfboard, to protect the rail when the rope is pulled taut."
      ],
      "links": [
        [
          "surfing",
          "surfing#Noun"
        ],
        [
          "fabric",
          "fabric"
        ],
        [
          "leg rope",
          "leg rope"
        ],
        [
          "surfboard",
          "surfboard"
        ],
        [
          "rail",
          "rail"
        ],
        [
          "taut",
          "taut"
        ]
      ],
      "raw_glosses": [
        "(surfing) A piece of fabric at the point where the leg rope is attached to the surfboard, to protect the rail when the rope is pulled taut."
      ],
      "topics": [
        "hobbies",
        "lifestyle",
        "sports",
        "surfing"
      ]
    }
  ],
  "word": "rail saver"
}