a Roman Catholic priest who acts for another higher-ranking clergyman
"The local vicar stepped in to lead the mass when the bishop was unable to attend due to illness."
(Episcopal Church) a clergyman in charge of a chapel
"After moving to the countryside, he was appointed vicar of the small chapel overlooking the valley."
(Church of England) a clergyman appointed to act as priest of a parish
"The new vicar has just moved into the rectory and is already planning his first Sunday sermon for our small parish."
In the Church of England, the priest of a parish, receiving a salary or stipend but not tithes.
"After years as a curate, he was finally appointed vicar and began drawing his annual stipend from the diocese."