Inequality (noun)

1. A situation in which some people or things are unequal in terms of rights, opportunities, or status.
2. The state or quality of being unequal; lack of equality.

Origin:

Late 16th century (denoting an unjust or unequal state or condition): from french inégalité, from in- ("not") + égalité ("equality"), or from late latin inaequalitas.

Examples:

1. The report highlighted the growing income inequality in the country.
2. The government promised to tackle inequality by introducing new policies.
3. The protest was aimed at raising awareness about the social and economic inequalities in the community.
4. The educational system is a source of great inequality, with many children lacking access to quality schools.
5. The inequality of wealth distribution is one of the main challenges facing the world today.