1. a person or thing that makes something happen
2. a principle, aim, or movement that people support or fight for

1. to make something happen

Examples

• The heavy rain was the cause of the flooding.
• Scientists are studying the cause of the disease.
• She donated money to support the environmental cause.
• They fought for the cause of civil rights.
• The accident caused major traffic delays.
• Smoking can cause serious health problems.
• His rude behavior caused her to leave early.