n. The act of professing; open declaration; public avowal or acknowledgment of one's sentiments or belief.n. That which is professed; a declaration; a representation or protestation; pretense; specifically, an open and formal avowal of Christian faith and purpose.n. The calling or occupation which one professes to understand and to follow; vocation; specifically, a vocation in which a professed knowledge of some department of science or learning is used by its practical application to affairs of others, either in advising, guiding, or teaching them, or in serving their interests or welfare in the practice of an art founded on it.n. The collective body of persons engaged in a calling: as, practices disgraceful to the profession; to be at the head of one's profession.n. The act by which a novice enters into a religious order and takes its vows. In the Roman Catholic Church he or she must be at least sixteen years of age and must have completed a year of probation.n. Character; nature.n. Synonyms Vocation, Business, etc. See occupation.