Inequality refers to differences in wealth, resources, or opportunities between people or groups. It can be seen in income, education, housing, or access to services. These differences exist in all societies.

Some people may have greater access to healthcare or education, while others have fewer opportunities. Inequality can occur within a city or between countries. Data such as income levels or living conditions is used to measure these gaps.

Inequality is studied in economics and social sciences. It is part of how societies are structured.