- The definition of bygone means something that is in the past.
An example of a bygone is an old fight that a couple decide to leave in the past.
bygone definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
that has or have gone by; past; former
anything that is gone or past
bygone definition by American Heritage Dictionary
The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Gone by; past: bygone days.noun
One, especially a grievance, that is past: Let bygones be bygones.
bygone - Phrases/Idioms
let bygones be bygones
to let past offenses or disagreements be forgotten