"tight five" meaning in English

{
  "forms": [
    {
      "form": "tight fives",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "tight five (plural tight fives)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Rugby",
          "orig": "en:Rugby",
          "parents": [
            "Ball games",
            "Sports",
            "Human activity",
            "Human behaviour",
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "_dis": "50 50",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "45 55",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "The five forwards who form the front row and the second row in the scrum."
      ],
      "id": "en-tight_five-en-noun-60qx~fPH",
      "links": [
        [
          "rugby",
          "rugby"
        ],
        [
          "five",
          "five"
        ],
        [
          "front row",
          "front row"
        ],
        [
          "second row",
          "second row"
        ],
        [
          "scrum",
          "scrum"
        ]
      ],
      "raw_glosses": [
        "(rugby) The five forwards who form the front row and the second row in the scrum."
      ],
      "synonyms": [
        {
          "_dis1": "100 0",
          "word": "front five"
        }
      ],
      "topics": [
        "ball-games",
        "games",
        "hobbies",
        "lifestyle",
        "rugby",
        "sports"
      ]
    },
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Comedy",
          "orig": "en:Comedy",
          "parents": [
            "Drama",
            "Theater",
            "Art",
            "Entertainment",
            "Culture",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "_dis": "50 50",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "45 55",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "43 57",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "A five-minute set of jokes performed by a stand-up comedian, usually made up of only their best material."
      ],
      "id": "en-tight_five-en-noun-g6ygU6qe",
      "links": [
        [
          "comedy",
          "comedy"
        ],
        [
          "set",
          "set"
        ],
        [
          "stand-up",
          "stand-up"
        ],
        [
          "comedian",
          "comedian"
        ],
        [
          "material",
          "material"
        ]
      ],
      "raw_glosses": [
        "(comedy) A five-minute set of jokes performed by a stand-up comedian, usually made up of only their best material."
      ],
      "topics": [
        "comedy",
        "entertainment",
        "lifestyle"
      ]
    }
  ],
  "word": "tight five"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English multiword terms",
    "English nouns",
    "Pages with 1 entry",
    "Pages with entries"
  ],
  "forms": [
    {
      "form": "tight fives",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "tight five (plural tight fives)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "en:Rugby"
      ],
      "glosses": [
        "The five forwards who form the front row and the second row in the scrum."
      ],
      "links": [
        [
          "rugby",
          "rugby"
        ],
        [
          "five",
          "five"
        ],
        [
          "front row",
          "front row"
        ],
        [
          "second row",
          "second row"
        ],
        [
          "scrum",
          "scrum"
        ]
      ],
      "raw_glosses": [
        "(rugby) The five forwards who form the front row and the second row in the scrum."
      ],
      "topics": [
        "ball-games",
        "games",
        "hobbies",
        "lifestyle",
        "rugby",
        "sports"
      ]
    },
    {
      "categories": [
        "en:Comedy"
      ],
      "glosses": [
        "A five-minute set of jokes performed by a stand-up comedian, usually made up of only their best material."
      ],
      "links": [
        [
          "comedy",
          "comedy"
        ],
        [
          "set",
          "set"
        ],
        [
          "stand-up",
          "stand-up"
        ],
        [
          "comedian",
          "comedian"
        ],
        [
          "material",
          "material"
        ]
      ],
      "raw_glosses": [
        "(comedy) A five-minute set of jokes performed by a stand-up comedian, usually made up of only their best material."
      ],
      "topics": [
        "comedy",
        "entertainment",
        "lifestyle"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "front five"
    }
  ],
  "word": "tight five"
}