noun
admonition
ad-muh-NISH-uhn/ˌædməˈnɪʃn/
A firm warning or advice meant to correct someone's behavior.
His mother's admonition keeps him from touching the hot pan.

Etymology
The monere root connects admonition with reminding; ad- probably marks repeated action. The noun’s earlier sense of ‘reminding’ developed into a caution about future conduct based on past failures.
In context
nurture and admonition of the Lord to teach what's right and what's wrong in the house
More examples
- The coach's admonition against careless tackles echoed after the match.
- She ignores repeated admonitions to check her sources.
- A gentle admonition is enough to stop the whispering.
Forms
admonition · admonitions
admonish verb — To speak firmly about proper conduct.