B1
the details or reasons that someone gives to make something clear or easy to understand
Dictionary examples:
The dog ate my homework isn't a good explanation anymore. (0.0)
The teacher demanded an explanation for the class's sudden laughter. (0.0)
His explanation for eating 20 burgers? 'I thought they were sliders!' (0.0)
What was her explanation for why she was late? (18.0)
Could you give me a quick explanation of how it works? (19.2)