"follow board" meaning in English

{
  "forms": [
    {
      "form": "follow boards",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "follow board (plural follow boards)",
      "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": "Metallurgy",
          "orig": "en:Metallurgy",
          "parents": [
            "Metals",
            "Technology",
            "Matter",
            "All topics",
            "Chemistry",
            "Nature",
            "Fundamental",
            "Sciences"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A board on which the pattern and the flask lie while the sand is rammed into the flask."
      ],
      "id": "en-follow_board-en-noun-CQYi5aVT",
      "links": [
        [
          "pattern",
          "pattern"
        ],
        [
          "flask",
          "flask"
        ],
        [
          "sand",
          "sand"
        ],
        [
          "ram",
          "ram"
        ]
      ],
      "qualifier": "metal founding",
      "raw_glosses": [
        "(metal founding) A board on which the pattern and the flask lie while the sand is rammed into the flask."
      ],
      "related": [
        {
          "word": "cope"
        },
        {
          "word": "drag"
        }
      ]
    }
  ],
  "word": "follow board"
}

{
  "forms": [
    {
      "form": "follow boards",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "follow board (plural follow boards)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "cope"
    },
    {
      "word": "drag"
    }
  ],
  "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:Metallurgy"
      ],
      "glosses": [
        "A board on which the pattern and the flask lie while the sand is rammed into the flask."
      ],
      "links": [
        [
          "pattern",
          "pattern"
        ],
        [
          "flask",
          "flask"
        ],
        [
          "sand",
          "sand"
        ],
        [
          "ram",
          "ram"
        ]
      ],
      "qualifier": "metal founding",
      "raw_glosses": [
        "(metal founding) A board on which the pattern and the flask lie while the sand is rammed into the flask."
      ]
    }
  ],
  "word": "follow board"
}