Dis-abuse is a word that means to rid someone of a mistaken belief or misconception. There are several synonyms for this word, including debunk, disillusion, undeceive, correct, and rectify. Debunk refers to exposing a false belief or idea. Disillusion means to make someone aware of the reality of a situation, which may contradict their previously held beliefs. Undeceive is similar to disillusion, but it suggests that someone was deliberately misled. Correct means to make something accurate or right. Rectify also means to correct, especially an error or wrongdoing. All these words can be used interchangeably with dis-abuse to express the act of correcting someone's false beliefs or misconceptions.