"last sixteen" meaning in English

{
  "forms": [
    {
      "form": "last sixteens",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "last sixteen (plural last sixteens)",
      "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": "other",
          "name": "English entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Sixteen",
          "orig": "en:Sixteen",
          "parents": [
            "Numbers",
            "All topics",
            "Terms by semantic function",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Sports",
          "orig": "en:Sports",
          "parents": [
            "Human activity",
            "Human behaviour",
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2008 February 12, “Allen edges through in Welsh Open”, in BBC Sport",
          "text": "The young Northern Ireland player now meets Ryan Day for a place in the last sixteen of the ranking tournament.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "The round in a knockout competition before the quarterfinal, in which sixteen teams or competitors remain."
      ],
      "id": "en-last_sixteen-en-noun-f28pR23B",
      "links": [
        [
          "sports",
          "sports"
        ],
        [
          "knockout",
          "knockout"
        ],
        [
          "quarterfinal",
          "quarterfinal"
        ]
      ],
      "raw_glosses": [
        "(sports) The round in a knockout competition before the quarterfinal, in which sixteen teams or competitors remain."
      ],
      "related": [
        {
          "word": "last four"
        },
        {
          "word": "last eight"
        },
        {
          "word": "Sweet Sixteen"
        }
      ],
      "synonyms": [
        {
          "word": "round of 16"
        },
        {
          "word": "round of sixteen"
        },
        {
          "word": "last 16"
        }
      ],
      "topics": [
        "hobbies",
        "lifestyle",
        "sports"
      ]
    }
  ],
  "word": "last sixteen"
}

{
  "forms": [
    {
      "form": "last sixteens",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "last sixteen (plural last sixteens)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "last four"
    },
    {
      "word": "last eight"
    },
    {
      "word": "Sweet Sixteen"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with topic categories using raw markup",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys",
        "English terms with quotations",
        "en:Sixteen",
        "en:Sports"
      ],
      "examples": [
        {
          "ref": "2008 February 12, “Allen edges through in Welsh Open”, in BBC Sport",
          "text": "The young Northern Ireland player now meets Ryan Day for a place in the last sixteen of the ranking tournament.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "The round in a knockout competition before the quarterfinal, in which sixteen teams or competitors remain."
      ],
      "links": [
        [
          "sports",
          "sports"
        ],
        [
          "knockout",
          "knockout"
        ],
        [
          "quarterfinal",
          "quarterfinal"
        ]
      ],
      "raw_glosses": [
        "(sports) The round in a knockout competition before the quarterfinal, in which sixteen teams or competitors remain."
      ],
      "synonyms": [
        {
          "word": "round of 16"
        },
        {
          "word": "round of sixteen"
        }
      ],
      "topics": [
        "hobbies",
        "lifestyle",
        "sports"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "last 16"
    }
  ],
  "word": "last sixteen"
}