broaden

• POS: Verb (usu participle)
• HYPHEN: broad=en

CIDE DICTIONARY

broaden, v. t. [From Broad, a.].

 To grow broad; to become broader or wider.  [1913 Webster]
"The broadening sun appears."  [1913 Webster]

broaden, v. t. 

 To make broad or broader; to render more broad or comprehensive.  [1913 Webster]

OXFORD DICTIONARY

broaden, v.tr. & intr. make or become broader.

THESAURUS

broaden

accrue, accumulate, add to, advance, aggrandize, amplify, appreciate, augment, balloon, bloat, blow up, boom, boost, breed, build, build up, bulk, bulk out, crescendo, deal in generalities, deepen, develop, dilate, distend, ecumenicize, enlarge, exalt, expand, extend, fatten, fill out, gain, gain strength, generalize, get ahead, globalize, go up, greaten, grow, hike, hike up, huff, increase, inflate, intensify, jack up, jump up, lengthen, magnify, make a generalization, maximize, mount, multiply, open, outspread, outstretch, parlay, proliferate, puff, puff up, pump, pump up, put up, pyramid, raise, rarefy, rise, run up, shoot up, snowball, spread, spread out, strengthen, stretch, sufflate, swell, thicken, tumefy, universalize, up, wax, widen