Meaning of “frustrate” in the English Dictionary

"frustrate" in American English

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frustrateverb [ T ]

us /ˈfrʌs·treɪt/

frustrate verb [ T ] (ANNOY)

to annoy someone or cause someone to be disappointed or discouraged:

People are frustrated with the politicians.
Customer service is important, so businesses can’t afford to frustrate customers.

frustrate verb [ T ] (BLOCK)

to block something from being achieved; prevent the success of a plan or effort:

For now there are enough votes to frustrate the administration on issue after issue.

(Definition of “frustrate” from the Cambridge Academic Content Dictionary © Cambridge University Press)