self-confidence
🇺🇸
/ˌself ˈkɑːnfɪdəns/
🇬🇧
/ˌself ˈkɒnfɪdəns/
believing in yourself and what you can do
Her self-confidence grew after she practiced the speech many times.
经过多次练习演讲后,她的自信心增强了。