The term "the rank and file" refers to the ordinary members of an organization or group. There are several synonyms that can be used to describe this group. One such term is "the grassroots," which refers to the common people or members of a community who are not part of the leadership or elite. Another term is "the commonality," which refers to the average or ordinary members of a society or group. "The masses" is another synonym that can be used, which refers to a large, undifferentiated group of people. Other possible synonyms include "the proletariat" and "the working class," which both refer to those who work for a living.