Does the Word Bygone Mean?

: gone by : past He lived in a bygone time. : an event that is over and done with Let bygones be bygones.

What does it mean when someone says bygone?

: to forgive someone for something done or for a disagreement and to forget about it I know we've had our fights over the years, but I think it's time we let bygones be bygones.

Can a person be bygone?

A person or occurrence that took place in the past. One, especially a grievance, that is past. Let bygones be bygones. That has or have gone by; past; former.