Meaning of NERVE in English

(BRAVERY) [noun] [U] - bravery or confidence necessary to do something difficult, unpleasant or rudeIt takes a lot of nerve to be a bomb disposal expert.I went parachuting once but I lost my nerve just before the jump and stayed in the plane.I didn't have the nerve to tell him what I really thought of his suggestion. [+ to infinitive]She's late for work every day, but she still has the nerve to lecture me about punctuality. [+ to infinitive]That man has such a nerve! He's always blaming me for things that are his fault.She drove the car into a tree and then told me it was my fault for not concentrating, of all the nerve!Something that is nerve-racking or nerve-wracking is difficult to do and causes a lot of worry for the person involved in it.My wedding was the most nerve-racking thing I've ever experienced.

Cambridge English vocab.      Кембриджский английский словарь.