"淦止め" meaning in 日本語

{
  "categories": [
    {
      "kind": "other",
      "name": "日本語",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "日本語 和語の漢字表記",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "複数訓",
      "parents": [],
      "source": "w"
    }
  ],
  "forms": [
    {
      "form": "あかどめ"
    },
    {
      "form": "あかとめ"
    }
  ],
  "lang": "日本語",
  "lang_code": "ja",
  "pos": "unknown",
  "pos_title": "和語の漢字表記",
  "senses": [
    {
      "examples": [
        {
          "text": "ザオの木は中部に多く、チャム人はこの油を漁船の淦止めに使った。(内海三八郎 著『南ヴェトナム風土記』)〔1964〕"
        }
      ],
      "form_of": [
        {
          "word": "あかどめ"
        }
      ],
      "glosses": [
        "あかどめの漢字表記。"
      ],
      "id": "ja-淦止め-ja-unknown-ezMpcG2E"
    },
    {
      "form_of": [
        {
          "word": "あかとめ"
        }
      ],
      "glosses": [
        "あかとめの漢字表記。"
      ],
      "id": "ja-淦止め-ja-unknown-ijXhT5Mv"
    }
  ],
  "tags": [
    "form-of",
    "kanji"
  ],
  "word": "淦止め"
}

{
  "categories": [
    "head tracking/no lang category",
    "日本語",
    "日本語 和語の漢字表記",
    "複数訓"
  ],
  "forms": [
    {
      "form": "あかどめ"
    },
    {
      "form": "あかとめ"
    }
  ],
  "lang": "日本語",
  "lang_code": "ja",
  "pos": "unknown",
  "pos_title": "和語の漢字表記",
  "senses": [
    {
      "examples": [
        {
          "text": "ザオの木は中部に多く、チャム人はこの油を漁船の淦止めに使った。(内海三八郎 著『南ヴェトナム風土記』)〔1964〕"
        }
      ],
      "form_of": [
        {
          "word": "あかどめ"
        }
      ],
      "glosses": [
        "あかどめの漢字表記。"
      ]
    },
    {
      "form_of": [
        {
          "word": "あかとめ"
        }
      ],
      "glosses": [
        "あかとめの漢字表記。"
      ]
    }
  ],
  "tags": [
    "form-of",
    "kanji"
  ],
  "word": "淦止め"
}