1. the act of giving up a position of power, especially by a monarch giving up the throne
2. the act of giving up or abandoning a responsibility or duty

Examples

• The king’s abdication shocked the entire nation.
• Edward VIII’s abdication in 1936 changed British history.
• The CEO’s sudden abdication left the company in chaos.
• His abdication of parental duties was inexcusable.
• The abdication of responsibility by government officials angered voters.
• The queen considered abdication but ultimately remained on the throne.