CM: 'Syzygy' is a Greek word and means conjunction. In broadest terms, syzygy is a kind of unity, especially through coordination or alignment, most commonly used in an astronomical sense. Syzygy describes the alignment of three or more celestial bodies in the same gravitational system along a plane. In philosophy, the Russian theologian Vladimir Solovyov (1853-1900) used syzygy to signify unity-friendship-community, to study a pair of connected or correlative things, or a couple or pair of opposites.