"blank end" meaning in English

{
  "forms": [
    {
      "form": "blank ends",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "blank end (plural blank ends)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "en",
          "name": "Curling",
          "orig": "en:Curling",
          "parents": [],
          "source": "w"
        }
      ],
      "derived": [
        {
          "word": "blank an end"
        }
      ],
      "glosses": [
        "An end in which no stones are touching the house, and thus no points are scored."
      ],
      "id": "en-blank_end-en-noun-EljbKEoS",
      "links": [
        [
          "curling",
          "curling"
        ],
        [
          "end",
          "end"
        ],
        [
          "stone",
          "stone"
        ],
        [
          "house",
          "house"
        ]
      ],
      "raw_glosses": [
        "(curling) An end in which no stones are touching the house, and thus no points are scored."
      ],
      "topics": [
        "ball-games",
        "curling",
        "games",
        "hobbies",
        "lifestyle",
        "sports"
      ]
    }
  ],
  "word": "blank end"
}

{
  "derived": [
    {
      "word": "blank an end"
    }
  ],
  "forms": [
    {
      "form": "blank ends",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "blank end (plural blank ends)",
      "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",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Curling"
      ],
      "glosses": [
        "An end in which no stones are touching the house, and thus no points are scored."
      ],
      "links": [
        [
          "curling",
          "curling"
        ],
        [
          "end",
          "end"
        ],
        [
          "stone",
          "stone"
        ],
        [
          "house",
          "house"
        ]
      ],
      "raw_glosses": [
        "(curling) An end in which no stones are touching the house, and thus no points are scored."
      ],
      "topics": [
        "ball-games",
        "curling",
        "games",
        "hobbies",
        "lifestyle",
        "sports"
      ]
    }
  ],
  "word": "blank end"
}