"stub nail" meaning in English

{
  "forms": [
    {
      "form": "stub nails",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "stub nail (plural stub nails)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "99 1",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "An old horseshoe nail; a nail broken off."
      ],
      "id": "en-stub_nail-en-noun-CMph3cDV",
      "links": [
        [
          "horseshoe",
          "horseshoe"
        ]
      ],
      "related": [
        {
          "_dis1": "63 37",
          "word": "stub iron"
        }
      ]
    },
    {
      "glosses": [
        "A short, thick nail."
      ],
      "id": "en-stub_nail-en-noun-MIcdfGY~"
    }
  ],
  "word": "stub nail"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English multiword terms",
    "English nouns"
  ],
  "forms": [
    {
      "form": "stub nails",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "stub nail (plural stub nails)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "stub iron"
    }
  ],
  "senses": [
    {
      "glosses": [
        "An old horseshoe nail; a nail broken off."
      ],
      "links": [
        [
          "horseshoe",
          "horseshoe"
        ]
      ]
    },
    {
      "glosses": [
        "A short, thick nail."
      ]
    }
  ],
  "word": "stub nail"
}