1. the wrong or improper use of something

1. to use something incorrectly or for the wrong purpose
2. to treat someone or something badly or harmfully

Examples

• The company was accused of misusing customer data.
• Don’t misuse the equipment or it will break.
• The misuse of antibiotics can lead to drug resistance.
• He was fired for misuse of company funds.
• The teacher explained the common misuse of that grammar rule.
• Misuse of power by officials undermines public trust.
• The software prevents misuse of personal information.