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English definition of “straighten”

straighten

verb [I/T] (MAKE NOT BEND)   /ˈstreɪt·ən/
to make something so that it does not bend: [I] Her shoulders straightened, and she cleared her throat. [T] First bend and then straighten your leg. [M] You must straighten out the pipe.
(Definition of straighten verb (MAKE NOT BEND) from the Cambridge Academic Content Dictionary © Cambridge University Press)
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