How do you address a seminarian or a priest in training?

Answer 1

A Seminarian is hardly ever referred to as 'Brother'.Only in cases where he is studying for religious life and has been given the Habit of his Order can you call him Brother. seminarians are often simply called Mr. Smith, but in some more formal circles Seminarian Smith. And in some countries and cases, when addressing an invitation, a letter or introducing him, a seminarian ought to be referred to as "The Reverend Seminarian Jonathan Smith, from the (Arch)diocese of Boston."