Reinforcement (noun)

Something that strengthens or supports an existing idea, behavior or structure.

Origin:

From reinforcement meaning "something that strengthens or supports".

Examples:

1. The teacher used positive reinforcement to encourage good behavior in the class.
2. The reinforcement of the bridge's pillars will make it stronger.
3. The company's new advertising campaign is a reinforcement of their brand image.
4. The reinforcement of the military forces will help to maintain peace.
5. The reinforcement of the wall with steel bars will make it more secure.