Explain
Part of speech: verb
Definition: To give a sufficiently detailed report about (a) the reason for something, about why something happened, about a causal chain of events; about (b) how something works, about how elements in a system interact; about (c) how to do something, about the steps which need to be accomplished in order to accomplish a certain goal. To give a valid excuse for some past behavior. To make flat, smooth out. To unfold or make visible.
Example sentence: If I could explain it to the average person, it wouldn't have been worth the Nobel Prize.
Excuse
Part of speech: noun
Definition: An explanation designed to avoid or alleviate guilt or negative judgement.
Part of speech: verb
Definition: To forgive; to pardon.To allow to leave.To provide an excuse for; to explain, with the aim of alleviating guilt or negative judgement.
Example sentence: There are new words now that excuse everybody. Give me the good old days of heroes and villains, the people you can bravo or hiss. There was a truth to them that all the slick credulity of today cannot touch.