Found in the following dictionaries
Enable (Words with friends)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)
"Crux" Definition
noun
A puzzling or apparently insoluble problem.
Source: American Heritage Dictionary
The basic, central, or critical point or feature: the crux of the matter; the crux of an argument.
Source: American Heritage Dictionary
A puzzling or difficult problem an unsolved question.
Source: Merriam-Webster
An essential point requiring resolution or resolving an outcome.
Source: Merriam-Webster
A main or central feature (as of an argument).
Source: Merriam-Webster