Answer: widen

AnswerCrossword Clue
WIDENDilate; expand
WIDENStretch
WIDENAdd lanes to, as a highway
WIDENAdd a lane to, perhaps
WIDENOpen up
WIDENExpand.
WIDENEnlarge.
WIDENExtend.
WIDENSpread.
WIDENImprove, as a road.
WIDENMake larger.
WIDENAmplify
WIDENExpand laterally
WIDENMake broader
WIDENEnlarge, in a way
WIDENDo a road job
WIDENExpand, as a highway
WIDENReam out
WIDENAdd a lane
WIDENChange, as from two lanes to three
WIDENExtend throughout
WIDENExpand, as a road
WIDENOpposite of narrow
widento make wide (extending far)
widento make or become wide or wider; broaden; expand
WIDENReam
WIDENEnlarge (as a roadbed)
WIDENExpand
WIDENSpread
WIDENGrow broad
WIDENBroaden
WIDENAdd lanes to
WIDENSpread out
WIDENEnlarge, as a road
WIDENAdd a lane to, say
WIDENMake broader, as a highway
WIDENImprove the road, in a way
WIDENLet out
WIDENDilate
WIDENGo from two to four lanes