confound

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confound /kənˈfaʊnd/ verb
confounds; confounded; confounding
confound
/kənˈfaʊnd/
verb
confounds; confounded; confounding
Learner's definition of CONFOUND
[+ object]
: to surprise and confuse (someone or something)
often used as (be) confounded
: to prove (someone or something) wrong
informal + old-fashioned used as an interjection to express anger or annoyance