noun
- the most important or difficult part of a problem or issue
- a crucial or decisive point
Examples
- The crux of the matter is whether we can afford the new equipment.
- Finding qualified teachers is the crux of the education problem.
- The crux of his argument was that taxes should be lowered.
- We’ve reached the crux of the negotiations.
- The crux of the mystery lies in the missing evidence.
- Understanding this concept is the crux of passing the exam.