Actus is a term derived from Latin, meaning "act" or "action." In legal contexts, it often refers to the physical act or conduct that constitutes a crime or offense. Understanding actus is essential in distinguishing between different types of legal actions and determining culpability. In philosophy, particularly in discussions of ethics and morality, actus can refer to the actions taken by individuals and the intentions behind those actions. This concept helps in analyzing the moral implications of decisions and behaviors, emphasizing the importance of both the act itself and the motivation behind it.