crux
Translation
crux, core, essence
Examples
The crux of the problem is a lack of funding.
The crux of the problem is a lack of funding.
Grammar Patterns
((the)) crux of ((the matter/problem)) the most important or difficult part of a problem That is the crux of the problem.
Similar Words
Synonyms: core, heart, essence, gist
Etymology
From Latin *crux* 'cross'. The meaning evolved to 'a difficulty, a puzzle'.
Memory Tips
The 'crux' is where all the lines of a problem 'cross'. Think of an 'X' marking the spot.