the crux of the matterthe most important or fundamental point of an issueThe crux of the matter is whether the benefits of the policy outweigh the costs.NoteThe crux of the matter is whether the benefits of the policy outweigh the costs.Elon.io is an online learning platformWe have an entire course teaching IELTS Vocabulary — Band 7+ grammar and vocabulary.Start learning IELTS Vocabulary — Band 7+ now