settle
I knew then that we would never resolve our differences.
Disputing parties should be encouraged to resolve their differences without going to court.
When neighbouring countries disagree, should other countries try to help them settle their differences?
They need to resolve their differences quickly.
They had a terrible argument a few weeks ago, but now they've settled their differences.

SMART Vocabulary: related words and phrases

Making & accepting apologies
amends
apologetically
apologize
atone for something
atonement
beg
bury
bygone
conciliatory
crawl
crawl back (to someone)idiom
forge ahead
forgive
penance
repentance
shred
sink your differencesidiom
solatium
sorry to bother you
soz