Detention is a punishment where students must stay at school outside of regular class hours, usually for breaking rules or misbehaving. If you get detention, you might have to spend your lunch period or stay after school sitting quietly in a classroom, often doing homework or just waiting for the time to pass.

Schools use detention for things like talking back to a teacher, being repeatedly late to class, not doing homework, or disrupting lessons. It's meant to be inconvenient enough that students think twice before breaking the same rule again. The idea is that losing free time hurts more than just getting a verbal warning.

Detention can also mean the act of holding someone in custody or preventing them from leaving a place. Police might hold a suspect in detention while investigating a crime. In both school and legal settings, detention keeps you in one place when you'd rather be somewhere else.

Some students end up in detention for genuinely poor choices, while others might land there for minor infractions like forgetting a textbook. Either way, detention gives you time to think about what happened and what you'd do differently next time.