Meaning of “contradiction” - Learner’s Dictionary

contradiction

noun uk us /ˌkɒntrəˈdɪkʃən/
DIFFERENCE [ C ]

a big difference between two things that are said or written about the same subject, or between what someone says and what they do:

There is a clear contradiction between what she says and what she does.
WRONG [ U ]

an act of saying that what someone has just said is wrong

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