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straighten up

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verb (adverb)
to become or cause to become erect
mainly US to reform or become reformed
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

How to use straighten up in a sentence

Other Idioms and Phrases with straighten up

straighten up

Make tidy, as in Let's get this room straightened up. [Second half of 1800s]

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
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