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English definition of “affirm”

affirm

verb [T] uk   /əˈfɜːm/ us    /-ˈfɝːm/ formal
to state something as true: [+ (that)] The suspect affirmed (that) he had been at home all evening. She affirmed her intention to apply for the post. to publicly show your support for an opinion or idea: The government has affirmed its commitment to equal rights.
affirmation
noun [C or U] uk   /ˌæf.əˈmeɪ.ʃən/ us    /-ɚ-/
We welcome the government's affirmation of its intention to act.
(Definition of affirm from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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