Deprivation means lacking something you need or should have. When you experience deprivation, you're missing something important, whether it's food, sleep, companionship, or opportunity.

The word often describes serious situations. Sleep deprivation happens when someone doesn't get enough rest for days or weeks, which makes it hard to think clearly or stay healthy. In history classes, you might read about populations suffering from deprivation during wars or famines, when people lacked adequate food, shelter, or medical care.

But deprivation can be temporary and less severe too. If you skip lunch and stay after school for band practice, you might feel hungry from food deprivation. When your family camps without phones or internet, you experience a kind of technology deprivation, though that might actually feel refreshing.

Scientists study how deprivation affects people. Research on sensory deprivation (being cut off from sights and sounds) shows how much humans need stimulation to stay mentally healthy. Studies on social deprivation reveal that people, especially children, need meaningful relationships to develop properly.

Deprivation means missing something that matters for your well-being or development, something whose absence causes harm or difficulty.