"toe wall" meaning in English

{
  "forms": [
    {
      "form": "toe walls",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "toe wall (plural toe walls)",
      "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"
        }
      ],
      "examples": [
        {
          "ref": "1940 October, Charles E. Lee, “Chalk Falls between Folkestone and Dover”, in Railway Magazine, page 533",
          "text": "No such influences are, however, at work on the cliffs to the north of the railway, where it is in the open, as the railway embankment itself and the toe wall at the bottom prevent such action [erosion by the sea]. A new toe wall has recently been constructed from the Dover end of Abbotscliff tunnel in the direction of Shakespeare colliery, but there remains a length of about 200 yd. to be done to complete the scheme.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A low retaining wall, e.g. at the bottom of a slope or cliff."
      ],
      "id": "en-toe_wall-en-noun-afd4Ki0U",
      "links": [
        [
          "retaining wall",
          "retaining wall"
        ]
      ]
    }
  ],
  "word": "toe wall"
}

{
  "forms": [
    {
      "form": "toe walls",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "toe wall (plural toe walls)",
      "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",
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "1940 October, Charles E. Lee, “Chalk Falls between Folkestone and Dover”, in Railway Magazine, page 533",
          "text": "No such influences are, however, at work on the cliffs to the north of the railway, where it is in the open, as the railway embankment itself and the toe wall at the bottom prevent such action [erosion by the sea]. A new toe wall has recently been constructed from the Dover end of Abbotscliff tunnel in the direction of Shakespeare colliery, but there remains a length of about 200 yd. to be done to complete the scheme.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A low retaining wall, e.g. at the bottom of a slope or cliff."
      ],
      "links": [
        [
          "retaining wall",
          "retaining wall"
        ]
      ]
    }
  ],
  "word": "toe wall"
}