in plain English

in plain English idiom
In clear, straightforward language, as in The doctor's diagnosis was too technical; please tell us what he meant in plain English. [c. 1500] Also see in so many words.

The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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