Introduction
A Monsignor is a priest who has been given additional responsibilities, such as serving as the pastor of a parish. Priests are usually referred to as Father.
Definition of Monsignor
A Monsignor is a priest on whom the Pope has conferred an honorary title, usually on the recommendation of his bishop. The title gives no added rank, authority, or larger congregation than any other priest has.
Definition of Priest
Priests are usually ordained to the priesthood by a bishop. Monsignor is not a separate rank of ordination; it is an honorary title only.
Differences between Monsignor and Priest
A monsignor is not a separate rank of ordination. It is an honorary title the pope gives to a man who is already an ordained priest, and only a bishop can ordain a priest.