rdzogs chen

great perfection, great completeness, mahasandhi, maha ati, total completeness, absolute perfection, total natural perfection TSE [IW]

rdzogs pa chen po the great perfection approach; great perfection (=nature/ state) [in second case, without definite article] [RB]

total (completeness, fullness), (great, absolute, total) perfection, most perfect or complete, 1 of rnying ma sects, great perfection, Great Perfection approach [JV]

great perfection, great completeness, Mahasandhi, great perfection, maha Ati, total completeness, absolute perfection, total natural perfection. Dzogchen, the Great Perfection [RY]

Skt. Mahasandhi - Dzogchen, Great Perfection [RY]