The improper use of words can refer to a number of different actions, all of which involve using language incorrectly or inappropriately. Some possible synonyms for this behavior might include: misuse of words, verbal abuse, linguistic malpractice, linguistic faux pas, communication errors, communication failures, language misuse, linguistic mistakes, and poor communication. Depending on the context in which the behavior is occurring, some of these terms may be more appropriate than others; for example, "verbal abuse" might be a more accurate description of inappropriate language use in a hostile or threatening situation, while "communication errors" might be a more neutral term for misunderstandings or miscommunications that occur in a less charged environment.