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broaden

[brawd-n] /ˈbrɔd n/
verb (used without object), verb (used with object)
1.
to become or make broad.
Origin of broaden
1720-1730
1720-30; broad + -en1
Related forms
overbroaden, verb
rebroaden, verb
unbroadened, adjective
Synonyms
extend, expand, enlarge, widen; enlighten, inform, educate; sophisticate.
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Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for broaden

broaden

/ˈbrɔːdən/
verb
1.
to make or become broad or broader; widen
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 broaden
v.

1727, from broad (adj.) + -en (1). The word seems no older than this date (discovered by Johnson in one of James Thomson's "Seasons" poems); broadened also is first found in the same poet, and past participle adjective broadening is recorded from 1850.

Online Etymology Dictionary, © 2010 Douglas Harper
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