See examples of undertake used in a sentence. When you undertake a task or job, you start doing it and accept responsibility for it. She undertook the arduous task of monitoring the elections.
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The meaning of undertake is to take upon oneself :
(tr) to contract to or commit oneself to (something) or (to do something):
To take upon oneself, as a task, performance, etc.; The act of one who undertakes, or engages in, any project or. How to use undertake in a sentence. Noun undertake (plural undertakes) (british, informal) the passing of slower traffic on the curbside rather than on the side closest to oncoming traffic.
Any business, work, or project which a person engages in, or attempts to perform;