[annalex]

The proper terms are Church Militant, Church Suffering and Church Triumphant. Do the Orthodox use those? "Invisible Church" is sometimes used to describe the mystical body of Christ. I don't understand the term very well, except when it simply means "the Church as the spiritual entity rather than the physical building".

[kosta50]

The Orthodox Church knows Church Militant (clergy and laity on earth) and Church Triumphant (in heaven, with Saints). The Orthodox also do not confuse the church building (brick and mortar to use Protestant temrinology), but often call the church building a temple.

Example: the largest Orthodox Church today is the Temple of Saint Sava in Belgrade, Serbia. Hagia Sophia would still be the largest were it not descecrated by the Ottomans and turned into a mosque. The Orthodox retained the owrd "temple" from Judaism to denote the actual building.