1. something accomplished successfully, especially through effort, skill, or courage
2. the act or process of achieving something

Examples

• Graduating from college was her greatest achievement.
• The team celebrated their achievement of winning the championship.
• His scientific achievements earned him international recognition.
• The achievement of peace in the region took years of negotiation.
• She felt proud of her achievement in learning a new language.
• The company’s achievement of record profits impressed investors.
• Academic achievement requires dedication and hard work.