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weaken

[wee-kuh n] /ˈwi kən/
verb (used with object)
1.
to make weak or weaker.
2.
Phonetics. to change (a speech sound) to an articulation requiring less effort, as from geminate to nongeminate or from stop to fricative.
verb (used without object)
3.
to become weak or weaker.
Origin
1520-1530
1520-30; weak + -en1
Related forms
weakener, noun
reweaken, verb
unweakened, adjective
unweakening, adjective
Synonyms
1, 3. enfeeble, debilitate, enervate, undermine, sap, exhaust, deplete, lessen, diminish, lower, reduce, impair, minimize, invalidate.
Antonyms
1, 3. strengthen.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for re weaken

weaken

/ˈwiːkən/
verb
1.
to become or cause to become weak or weaker
Derived Forms
weakener, 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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