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

cross-examine

verb [ T ] uk us /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 uk us /ˌkrɒsɪɡˌzæmɪˈneɪʃən/ noun [ U ]

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