1. to make something clear or easy to understand by describing or giving information about it
Usage: third person singular present tense of ‘explain’
2. to give the reason for or cause of something
Usage: third person singular present tense of ‘explain’

Examples

• The teacher explains the math problem step by step.
• She explains why she was late to the meeting.
• The manual explains how to install the software.
• He explains his decision to move to another city.
• The scientist explains the theory in simple terms.
• The guide explains the history of the ancient building.
• Mom explains the rules before we start the game.