“Haec Ecclesia, in hoc mundo ut societas constituta et ordinata, subsistit in Ecclesia catholica, a successore Petri et Episcopis in eius communione gubernata”
“This Church constituted and organized in the world as a society, subsists in the Catholic Church, which is governed by the successor of Peter and by the Bishops in communion with him”
-Lumen Gentium, 8
subsist: “to exist,” from Latin subsistere
subsistere: To stay, tarry, abide, remain in a place, Esp. (late Lat.), to remain alive, To make a stand, i. e. to stand firm, hold out; to withstand, oppose, resist
-Lewis & Short Dictionary
Things Vatican II Actually Said 