"darning egg" meaning in English

{
  "forms": [
    {
      "form": "darning eggs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "darning egg (plural darning eggs)",
      "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": "topical",
          "langcode": "en",
          "name": "Sewing",
          "orig": "en:Sewing",
          "parents": [
            "Crafts",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "An egg-shaped ovoid of stone, porcelain, wood, or similar hard material, which is inserted into the toe or heel of a sock to hold it in the proper shape and provide a firm foundation for repairs."
      ],
      "id": "en-darning_egg-en-noun-a7Ty6l1U",
      "links": [
        [
          "ovoid",
          "ovoid"
        ],
        [
          "sock",
          "sock"
        ]
      ],
      "translations": [
        {
          "code": "fr",
          "lang": "French",
          "sense": "egg-shaped ovoid of hard material which is inserted into the toe or heel of a sock",
          "tags": [
            "masculine"
          ],
          "word": "œuf à repriser"
        }
      ]
    }
  ],
  "word": "darning egg"
}

{
  "forms": [
    {
      "form": "darning eggs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "darning egg (plural darning eggs)",
      "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",
        "en:Sewing"
      ],
      "glosses": [
        "An egg-shaped ovoid of stone, porcelain, wood, or similar hard material, which is inserted into the toe or heel of a sock to hold it in the proper shape and provide a firm foundation for repairs."
      ],
      "links": [
        [
          "ovoid",
          "ovoid"
        ],
        [
          "sock",
          "sock"
        ]
      ]
    }
  ],
  "translations": [
    {
      "code": "fr",
      "lang": "French",
      "sense": "egg-shaped ovoid of hard material which is inserted into the toe or heel of a sock",
      "tags": [
        "masculine"
      ],
      "word": "œuf à repriser"
    }
  ],
  "word": "darning egg"
}