Is “Syzygy” a Scrabble word?
Yes
SYZYGY
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Syzygy
/ˈsɪz.ɪdʒ.i/
noun
1.An alignment of three celestial bodies (for example, the Sun, Earth, and Moon) such that one body is directly between the other two, such as occurs at an eclipse.
2.An archetypal pairing of contrasexual opposites, symbolizing the communication of the conscious and unconscious minds.
3.A relation between generators of a module.