strengthen

[ strengk-thuhn, streng-, stren- ]
/ ˈstrɛŋk θən, ˈstrɛŋ-, ˈstrɛn- /

verb (used with object)

to make stronger; give strength to.
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)

to gain strength; grow stronger.

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Origin of strengthen

First recorded in 1250–1300, strengthen is from the Middle English word strengthnen.See strength, -en1

OTHER WORDS FROM strengthen

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for strengthen

British Dictionary definitions for strengthen

strengthen
/ (ˈstrɛŋθən) /

verb

to make or become stronger

Derived forms of strengthen

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