"nine-ball" meaning in English

{
  "etymology_text": "Nine colored balls are used, in addition to the cue ball.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "nine-ball (uncountable)",
      "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"
        }
      ],
      "coordinate_terms": [
        {
          "word": "eight-ball"
        }
      ],
      "glosses": [
        "A form of pool in which players must hit with the cue ball the object ball with the lowest numerical value, but may legally pot any ball apart from the white; whichever player pots the nine ball wins the game."
      ],
      "id": "en-nine-ball-en-noun-yXa3LUr7",
      "links": [
        [
          "pool",
          "pool"
        ],
        [
          "player",
          "player"
        ],
        [
          "cue ball",
          "cue ball"
        ],
        [
          "object ball",
          "object ball"
        ],
        [
          "white",
          "white"
        ]
      ],
      "tags": [
        "uncountable"
      ],
      "wikipedia": [
        "nine-ball"
      ]
    }
  ],
  "word": "nine-ball"
}

{
  "coordinate_terms": [
    {
      "word": "eight-ball"
    }
  ],
  "etymology_text": "Nine colored balls are used, in addition to the cue ball.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "nine-ball (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English uncountable nouns"
      ],
      "glosses": [
        "A form of pool in which players must hit with the cue ball the object ball with the lowest numerical value, but may legally pot any ball apart from the white; whichever player pots the nine ball wins the game."
      ],
      "links": [
        [
          "pool",
          "pool"
        ],
        [
          "player",
          "player"
        ],
        [
          "cue ball",
          "cue ball"
        ],
        [
          "object ball",
          "object ball"
        ],
        [
          "white",
          "white"
        ]
      ],
      "tags": [
        "uncountable"
      ],
      "wikipedia": [
        "nine-ball"
      ]
    }
  ],
  "word": "nine-ball"
}