Englishfor English speakers
explanation
Noun
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An explanation is the words used to tell somebody how to do something or the reason for something.
The explanation was long and drawn-out.
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An explanation is the cause of something.
The explanation for his bad mood was a lack of sleep.
capability
Noun
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We say that someone has a capability when they are capable of doing something; that means they are able to do it.
He has great capabilities in using computers, but he always forgets to go to school on time.