Admonishment (noun)

1. A mild rebuke or reprimand.
2. A gentle or friendly warning.

Origin:

From latin admōnēre "to advise, remind".

Examples:

1. The teacher gave the student an admonishment for not paying attention in class.
2. The mother gave her daughter an admonishment for staying out too late.
3. The boss gave the employee an admonishment for being late to work.
4. He received an admonishment from the judge for his inappropriate behavior in court.
5. The coach gave the player an admonishment for not following the game plan.