Verb (used without object) : This is where the road narrows.    From Dictionary.com. 

Verb (used with object) : to narrow an area of search; to narrow down a contest to three competitors. ,Living in that village has narrowed him.    From Dictionary.com. 

A congenital heart defect that results in narrowing of the aorta.    From Wordnik.com.  [Cardiac terms and definitions] Reference

More recent courts have acted wisely in narrowing the exclusionary rule.    From Wordnik.com.  [Matthew Yglesias » Criminal Justice and Counterterrorism] Reference

There are, rather, policies that can be effective in narrowing them and this is one.    From Wordnik.com.  [Matthew Yglesias » Teaching Reading Right] Reference

In her introduction she explains the difficulties involved in narrowing the field to these companies.    From Wordnik.com.  [A Look at Canada Incorporated] Reference

As a writer with a wide variety of interests and a difficulty in narrowing them, I wonder about these things.    From Wordnik.com.  [How to Get a Book Deal: Part 2 – Get Thee A Blog (a Big One) | Write to Done] Reference

In several, the science played a crucial role in narrowing the suspect field, ultimately leading to an arrest.    From Wordnik.com.  [Race, DNA, Crime, And Denial] Reference

One is the insurance and the other is the implicit advice in narrowing down the array of choices to just a few.    From Wordnik.com.  [Collective vs. Individual Benefits, Arnold Kling | EconLog | Library of Economics and Liberty] Reference

Much progress has been made in narrowing down regions of chromosomes associated with different forms of epilepsy.    From Wordnik.com.  [Archive 2004-11-01] Reference

If the narrowing is mild, coarctation of the aorta might not be diagnosed until the child is older or even an adult.    From Wordnik.com.  [Coarctation of the Aorta] Reference

I listened to the album many many times in narrowing down my list and it never ceased to be thoroughly enjoyable and moving.    From Wordnik.com.  [Best of 2007, Part Four of Four ~ Music « 1979 Semi-Finalist…] Reference

Whether prominent education reformers will admit it or not, a significant bout of curriculum narrowing is occurring in public schools.    From Wordnik.com.  [Shaun Johnson: Can Social Studies Deliver Us from Insanity?] Reference

So that doesn’t help you a whole lot in narrowing it down.    From Wordnik.com.  [Former FBI agent Brad Garrett: Tips crucial to cracking case of mysterious shootings] Reference

This phenomenon can be called the narrowing of the consciousness field.    From Wordnik.com.  [The Brain, A Decoded Enigma] Reference

The insiders say Coakley's lead is narrowing, which is typical in the late stages of a campaign.    From Wordnik.com.  [The MetroWest Daily News Homepage RSS] Reference

There is thus no empirical evidence of a "narrowing" occuring.    From Wordnik.com.  [The Monday Myth Deconstruction] Reference

In "narrowing" the goals for the U.S. occupation of Afghanistan, President Obama appears to have obeyed the first rule of Congress.    From Wordnik.com.  [Robert Naiman: Obama Narrows Afghan Goals - And Leaves Them Wide] Reference

Biden played his advisor-in-chief role and worked vigorously for a "narrowing" of America's objectives and commitments in Afghanistan.    From Wordnik.com.  [Steve Clemons: Does Joe Biden Win or Lose in Obama Afghanistan Review?] Reference

The difficulty was in narrowing down the field.    From Wordnik.com.  [slayground: The Cybils: 2006 YA Finalists] Reference

Wright had called "narrowing"; but here he was not shut out.    From Wordnik.com.  [The Awakening of Helena Richie] Reference

And also, any kind of narrowing of time frame of that deal completion?.    From Wordnik.com.  [Comerica Incorporated CEO Discusses Q4 2010 Earnings Call Transcript - Seeking Alpha] Reference

(If I could figure out why some Windows systems do this "narrowing" thing and some don't, I'd be really happy.).    From Wordnik.com.  [VideoHelp.com Forum] Reference

This tendency causes a "narrowing" artifact within the literature and may inflate the appearance of scientific consensus.    From Wordnik.com.  [SEEDMAGAZINE.COM] Reference

Despite pundit discussion of a "narrowing" of polls, the fact is that Obama leads in every national poll, and has for several weeks now.    From Wordnik.com.  [X Curmudgeon] Reference

"narrowing" of curriculum, moves designed to give students the best chances of scoring well on the annual tests.    From Wordnik.com.  [LJWorld.com stories: News] Reference

And the grounds for suits, as Sporkin notes, need narrowing.    From Wordnik.com.  [The Limits Of The Law] Reference

And we'll experience "perceptual narrowing" or tunnel vision.    From Wordnik.com.  [What It Takes To Survive] Reference

While partial narrowing of the airway causes snoring, complete collapse leads to sleep apnea.    From Wordnik.com.  [Health for Life M.D.: Sleeping Well] Reference

Men vote at somewhat higher rates, though the gender gap in voting has been narrowing over time.    From Wordnik.com.  [Who's Going To The Polls?] Reference

And at home Saddam may now be vulnerable: his inner circle is narrowing, the number of defections growing.    From Wordnik.com.  [The View From Baghdad] Reference

I began my search by narrowing the possible dates of Cel's arrival to a 10-year period between 1905 and 1915.    From Wordnik.com.  [Between The Lines Online: Finding Grandma Cel] Reference

Bradford Ayres, a 19-year-old from Maple Valley, Wash., doesn't seem worried about narrowing his options prematurely.    From Wordnik.com.  [Pomp And Circuitry] Reference

They would start by narrowing the income gap between the stagnant interior and coastal free-market zones created by Deng.    From Wordnik.com.  [Whose Ideas Will Win When Deng Is Gone?] Reference

Although X-rays usually show the telltale narrowing of cartilage between their bones, most escape without serious symptoms.    From Wordnik.com.  [Arthritis: What It Is, Why You Get It, And How To Stop The Pain] Reference

But by narrowing the range of assessments, the new law could actually subject many elementary schools to fewer standardized tests.    From Wordnik.com.  [Give The Pols A Gold Star] Reference

A month later, when the two sides met again in Singapore, Hill told reporters that there had been "a considerable narrowing of views.".    From Wordnik.com.  [Anatomy of a Nuclear Deal] Reference