"spirit week" meaning in English

{
  "forms": [
    {
      "form": "spirit weeks",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "spirit week (plural spirit weeks)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "American English",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2003, Murray Baker, The Debt-Free Graduate",
          "text": "Student councils also offer a smorgasbord of programs, ranging from spirit weeks and Homecoming days to charity events. You've already paid for many of these activities through your student fees, so get your money's worth by participating.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "The week leading up to homecoming, during which school students dress up in unusual themed clothing."
      ],
      "id": "en-spirit_week-en-noun-LbKPXaXf",
      "links": [
        [
          "week",
          "week"
        ],
        [
          "homecoming",
          "homecoming"
        ],
        [
          "school",
          "school"
        ],
        [
          "student",
          "student"
        ],
        [
          "dress up",
          "dress up"
        ],
        [
          "themed",
          "themed"
        ],
        [
          "clothing",
          "clothing"
        ]
      ],
      "raw_glosses": [
        "(US) The week leading up to homecoming, during which school students dress up in unusual themed clothing."
      ],
      "tags": [
        "US"
      ]
    }
  ],
  "word": "spirit week"
}

{
  "forms": [
    {
      "form": "spirit weeks",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "spirit week (plural spirit weeks)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "American English",
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with quotations",
        "Quotation templates to be cleaned"
      ],
      "examples": [
        {
          "ref": "2003, Murray Baker, The Debt-Free Graduate",
          "text": "Student councils also offer a smorgasbord of programs, ranging from spirit weeks and Homecoming days to charity events. You've already paid for many of these activities through your student fees, so get your money's worth by participating.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "The week leading up to homecoming, during which school students dress up in unusual themed clothing."
      ],
      "links": [
        [
          "week",
          "week"
        ],
        [
          "homecoming",
          "homecoming"
        ],
        [
          "school",
          "school"
        ],
        [
          "student",
          "student"
        ],
        [
          "dress up",
          "dress up"
        ],
        [
          "themed",
          "themed"
        ],
        [
          "clothing",
          "clothing"
        ]
      ],
      "raw_glosses": [
        "(US) The week leading up to homecoming, during which school students dress up in unusual themed clothing."
      ],
      "tags": [
        "US"
      ]
    }
  ],
  "word": "spirit week"
}