- 1undertake something to make yourself responsible for something and start doing it to undertake a task/project College professors both teach and undertake research. The company has announced that it will undertake a full investigation into the accident.
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- 2undertake to do something undertake that… to agree or promise that you will do something He undertook to finish the job by Friday.
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NAmE//ˌʌndərˈteɪk//
(formal)Verb Forms present simple I / you / we / they undertake he / she / it undertakes
past simple undertook
past participle undertaken
-ing form undertaking
Check pronunciation: undertake