"School Days" can refer to several things:

1. A general term for the time period when children and teenagers attend educational institutions.

2. The Japanese anime and visual novel series "School Days" (スクールデイズ, Sukūru Deizu), which is known for its controversial and violent content.

3. Any school-related events, activities, or experiences that occur during a student's time in education.

4. A phrase used in titles of books, movies, or TV shows about school life.

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