undertake definition, meaning - what is undertake in the British English Dictionary & Thesaurus - Cambridge Dictionaries Online

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English definition of “undertake”

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undertake

verb [T] uk   /ˌʌn.dəˈteɪk/  us   /-dɚ-/ (undertook, undertaken)

undertake verb [T] (DO)

C1 formal to do or begin to do something, especially something that will take a long time or be difficult: Students are required to undertake simple experiments.
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undertake verb [T] (PROMISE)

C2 formal 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.
(Definition of undertake from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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