Cabinet member is a term that is frequently used to refer to individuals who work closely with the head of a governmental agency or department. Synonyms for cabinet member might include phrases such as subordinate manager or staff executive, both of which suggest a role that is subordinate to a higher authority. Other possibilities might include terms like assistant, deputy, or director, all of which convey a sense of someone who is responsible for overseeing a specific area of an organization's operations. Ultimately, the choice of synonym will depend on the context of the situation and the specific responsibilities of the individual in question.