A more thorough explanation:

Tenured faculty are members of a school's teaching staff who have job security. They hold their positions for life or until retirement, and they cannot be fired without a valid reason.

For example, if a tenured professor is consistently late to class or fails to meet their teaching obligations, they may be fired for cause. However, if a school wants to terminate a tenured professor for reasons other than cause, such as budget cuts or a change in curriculum, they must follow a specific process and provide a valid reason.

Tenured faculty are typically experienced and highly qualified educators who have demonstrated their commitment to teaching and research. They are valued members of the academic community and play an important role in shaping the future of their field.