Tabernacle: Place in the church where the Eucharist or sacred species is reserved.

Tekakwitha Conference: The group dedicated to advocating the cause of sainthood of the Blessed Kateri Tekakwitha, an American Indian.

Theologate: An institution which provides the last four years of study for candidates for priesthood.

Theology: The study of God and religion, deriving from and based on the data of divine Revelation, organized and systematized according to some kind of scientific method.

Titular Sees: Dioceses where the Church once flourished but which later died out. Bishops without a territorial or residential diocese of their own, e.g., auxiliary bishops, are given titular sees.

Tribunal: A tribunal (court) is the name given to the person or persons who exercise the Church's judicial powers.