Meaning of “cross-examine” - Learner’s Dictionary

cross-examine

verb [ T ] us uk /ˌkrɒsɪɡˈzæmɪn/

to ask someone a lot of questions about something they have said, in order to discover if it is true, especially in a court of law

cross-examination noun [ U ] us uk /ˌkrɒsɪɡˌzæmɪˈneɪʃən/

(Definition of “cross-examine” from the Cambridge Learner’s Dictionary © Cambridge University Press)