Not knowing alternatives is dangerous in professions where we expect expertise.
Wouldn't life be so much simpler if we just all call everyone "dude"? Many habitually continue a mistake to be consistent with previous mistakes, to not confuse the listener-reader.
I traveled to the Former Soviet Union 5 times (1992, 1997, 2007, 2011, 2015) for more than a year total time, to visit and document Spiritual Christian communities. While visiting nearly 100 Spiritual Christian congregations around the world, differences between the often confused faiths became clear to me.
My summary findings here and at are updated as time permits.
Definitions vary over time, place, and user (when, where, what/who).
Please properly use these 3 transliterated Russian terms in honest respect, to set the record straight.
Avoid confusing English labels, except to define the original labels in the Russian language.