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tighten

[tahyt-n] /ˈtaɪt n/
verb (used with object), verb (used without object)
1.
to make or become tight or tighter.
Origin
1720-1730
1720-30; tight + -en1
Related forms
tightener, noun
overtighten, verb
retighten, verb
self-tightening, adjective
untighten, verb (used with object)
Synonyms
secure, anchor, fasten.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for untighten

tighten

/ˈtaɪtən/
verb
1.
to make or become tight or tighter
2.
tighten one's belt, to economize
Derived Forms
tightener, noun
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
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Word Origin and History for untighten

tighten

v.

"to make tight," 1727; the earlier verb was simply tight, from Old English tyhtan, from the root of tight. Related: Tightened; tightening.

Online Etymology Dictionary, © 2010 Douglas Harper
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