Formal:
* The politician faced reproach from the public for his controversial comments.
* The company's CEO was met with reproach for his handling of the crisis.
* The judge levied a reproach against the defendant for their disregard for the law.
Informal:
* My mother gave me a look of reproach for forgetting to take out the trash.
* He felt a pang of reproach for his unkind words to his friend.
* The teacher's reproach for not completing the homework stung.
Figurative:
* The city's neglected parks were a reproach to its citizens.
* The empty chair at the dinner table was a constant reproach of his absence.
Note: "Reproach" can be a noun or a verb. In the examples above, it's used as a noun. Here's an example using it as a verb:
* The mother reproached her child for lying.