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English definition of “undertake”

undertake

verb [T] (PROMISE)    /ˌʌn.dəˈteɪk/ US  /-dɚ-/ (undertook, undertaken) formal
C2 to promise that you will do something: [+ to infinitive] She undertook not to publish the names of the people involved. [+ that] The government undertook that the buildings would not be redeveloped.Making and breaking promises and commitments
(Definition of undertake verb (PROMISE) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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