caution
US /ˈkɑː.ʃən/
UK /ˈkɑː.ʃən/

1.
care taken to avoid danger or mistakes
:
•
Exercise caution when driving in icy conditions.
•
The police issued a caution about the slippery roads.
2.
a formal warning given to someone who has committed a minor offense but is not charged with a crime
:
•
He was given a police caution for shoplifting.
•
The judge gave the young offender a final caution.