LOL. Nope. They are not interchangeable. Each group has a very specific place in the Church and very specific bonds, rights, obligations, boundaries and lifestyles.
Religious men and women come in the following sizes, LOL
Orders
Congregation
Society
Institute
Women religious are either sisters or nuns. They are not the same.
Men religious are: monks, friars, clerks and canons. they are not the same.
The vows are not the same either.
Some communities make solemn vows and some make simple vows.
The governance is not the same either. Orders are governed by a rule and constitutions. All the rest are governed by constitutions or statutes.
Some communities are of Pontifical Right and others are of Diocesan Right. The canons that govern them are very different. Communities of Pontifical Right are subject ONLY to their major superior and the Vatican. Communities of Diocesan Right are subject ot their major superior, the local bishop and the Vatican.
Among women religious only nuns can make solemn vows. Sisters make simple vows.
Among men religious orders of monks and orders of friars always make solemn vows, the others depend on when they were founded. The Church forbade the founding of new religious orders after the foundation of the Franciscans in the 1200s. All other communities of men founded after that were clerks regular, canons, congregations and societies. They usually make simple vows, though the Jesuits are a society of clerks regular and they make solemn vows. Congregations never make solemn vows.
Religious in solemn vows may never own property. Religious in simple vows may own property if the constitution of their community allows it.
Religious in solemn vows may never express their opinion without the permission of their superior. Said another way, the superior can mandate that they reserve their opinions to themselves. We may not ask questions, unless we’re allowed to do so by our superiors. We must always obey. We have no voice in our future or the selection of oiur assignments.
Religious in simple vows have more flexibility in the area of obedience, according to the constitution of their community. It depends on what is allowd by their founder and their constitutions.
And yes, I’m a friar in solemn vows. I’m one of those who have no opinions, no options, no questions, no property, and no desire to have any of it. LOL
Does this help?
Fraternally,
Br. JR, OSF