1. to make something clear or easy to understand by describing or giving information about it
2. to give the reason for or cause of something

Examples

• Can you explain how this machine works?
• The teacher explained the math problem step by step.
• Please explain why you were late to class.
• The scientist explained her research findings to the audience.
• He tried to explain his behavior to his parents.
• The manual explains how to install the software.
• She explained that the meeting had been cancelled.