1. unfair support or preference given to particular people or groups, often based on personal relationships rather than merit
Usage: British spelling (American: favoritism); uncountable noun

Examples

• The teacher was accused of favouritism for always calling on the same students.
• Favouritism in hiring practices undermines fair competition for jobs.
• The coach's favouritism toward certain players created tension on the team.
• Many employees complained about favouritism in the promotion process.
• The company's policy aims to eliminate favouritism and ensure equal opportunities.
• Favouritism based on family connections is common in some organizations.