A "paragon of moral virtue" is someone who embodies the highest standards of ethical behavior, but there are many different ways to describe such a person. Words like "exemplar," "embodiment," "epitome," and "ideal" all refer to someone who represents an ideal moral standard. Other synonyms might include "model," "standard-bearer," "role model," or "beacon." These words all highlight the sense of leadership and inspiration that a person who embodies moral virtue can provide. Ultimately, whether you call someone a "paragon," "exemplar," or any other name, the important thing is to recognize their valuable contribution to the moral fabric of society.