crux
crux /kr'ʌks/
[N-SING] the N, usu N of n
The crux of a problem or argument is the most important or difficult part of it which affects everything else.
He said the crux of the matter was economic policy.
[N-SING] the N, usu N of n
The crux of a problem or argument is the most important or difficult part of it which affects everything else.
He said the crux of the matter was economic policy.