Here are some examples of how it can be used:
* "The politician's lies discredited him in the eyes of the public." This means his actions caused people to no longer believe him or trust his words.
* "The scientific theory was discredited after new evidence emerged." This means that the new evidence showed the theory to be wrong, causing it to lose its credibility.
* "The rumors were discredited by the company's official statement." This means the company's statement proved the rumors to be false, making them no longer believable.
In essence, "discredited" signifies a loss of credibility, authority, or trustworthiness.