Misuse is a verb that refers to the improper, wrongful or inappropriate use of something. There are several synonyms for misuse, such as abuse, maltreatment, mishandle, mistreat, pervert and exploit. For instance, the word abuse suggests the use of something in a derogatory or harmful manner. Meanwhile, maltreatment denotes the mistreatment or abuse of someone or something. Mishandle is the failure to manage or deal with something properly. Mistreat implies the mistreatment of someone or something. Pervert is the improper or corrupt use of something. Lastly, exploit suggests the unethical or improper use of something or someone for one's own benefit.