Is “Crux” a Scrabble word?
Yes
CRUX
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 Crux
noun
1.The basic, central, or essential point or feature.
“The crux of her argument was that the roadways needed repair before anything else could be accomplished.”
2.The critical or transitional moment or issue, a turning point.
3.A puzzle or difficulty.
Synonyms: core, gist