Meaning of “misunderstanding” - Learner’s Dictionary

misunderstanding

noun uk us /ˌmɪsʌndəˈstændɪŋ/
NOT UNDERSTAND [ C, U ]

B2 If there is a misunderstanding, someone does not understand something correctly:

There must have been a misunderstanding.
DISAGREE [ C ]

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