A religious institute is a type of institute of consecrated life in the Catholic Church whose members take religious vows and lead a life in community with fellow members. Religious institutes are one of the two types of institutes of consecrated life; the other is that of the secular institute, where its members are "living in the world".
This article may be too technical for most readers to understand. (November 2016)
Societies of apostolic life resemble religious institutes in that its members live in community, but differ as their members do not take religious vows. They pursue the apostolic purpose of the society to which they belong, while leading a life in common as brothers or sisters and striving for the perfection of charity through observing the society's constitutions. In some of these societies the members assume the evangelical counsels by a bond other than that of religious vows defined in their constitutions.