to be no longer in a particular place:
The door slammed and he was gone.
I turned round for my bag and it was gone.
to be dead or to no longer exist:
His wife's been gone for several years.
Many of the old houses are gone now.
➔ dead and goneat dead1 (1)
2 British English informal
to be very attracted to someone of the opposite sex:
Kate's really gone on that boy next door.