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strengthen

[strengk-thuh n, streng-, stren-] /ˈstrɛŋk θən, ˈstrɛŋ-, ˈstrɛn-/
verb (used with object)
1.
to make stronger; give strength to.
2.
Phonetics. to change (a speech sound) to an articulation requiring more effort, as from fricative to stop or nongeminate to geminate.
verb (used without object)
3.
to gain strength; grow stronger.
Origin
1250-1300
1250-1300; Middle English strengthnen. See strength, -en1
Related forms
strengthener, noun
strengtheningly, adverb
overstrengthen, verb
prestrengthen, verb (used with object)
restrengthen, verb
unstrengthened, adjective
unstrengthening, adjective
Synonyms
1. buttress, reinforce, fortify, support.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for restrengthen

strengthen

/ˈstrɛŋθən/
verb
1.
to make or become stronger
Derived Forms
strengthener, 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 restrengthen

strengthen

v.

c.1300, from strength + -en (1). Related: Strengthened; strengthening.

Online Etymology Dictionary, © 2010 Douglas Harper
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