verb (used with or without object)

to make or become wide or wider; broaden; expand.

Origin of widen

First recorded in 1600–10; wide + -en1
Related formswid·en·er, nounre·wid·en, verbun·wid·ened, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for widen



to make or become wide or wider
Derived Formswidener, 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

Word Origin and History for widen

c.1600, from wide + -en (1). Related: Widened; widening.

Online Etymology Dictionary, © 2010 Douglas Harper