in·​ter·​sec·​tion | \ ˌin-tər-ˈsek-shən How to pronounce intersection (audio) , especially in sense 2 ˈin-tər-ˌsek-\

Definition of intersection

1 : the act or process of intersecting
2 : a place or area where two or more things (such as streets) intersect
3a : the set of elements common to two or more sets especially : the set of points common to two geometric configurations
b : the operation of finding the intersection of two or more sets

Illustration of intersection

Illustration of intersection

a intersection 3a

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Examples of intersection in a Sentence

The accident occurred at a busy intersection. two possible points of intersection the intersection of line A and line B
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Recent Examples on the Web

The closure, which takes the road down to one lane at the Main Street intersection, is not causing traffic issues but has put a sewer smell into the air, causing complaints. Benjamin Tobin, The Courier-Journal, "Three cave-in sites in downtown Louisville cause road closures," 6 Sep. 2019 Escamilla was in a crosswalk at that intersection three days before Christmas in 2016 when a driver delivering Amazon packages in a cargo van turned left and hit her. Patricia Callahan, ProPublica, "A Truck Delivering Amazon Holiday Packages. A Crash. A Family That Will Never Be the Same.," 5 Sep. 2019 Things to watch out for: Flash flooding can produce dangerous driving conditions at traffic intersections, especially in places like Fashion Valley in Mission Valley. Gary Robbins, San Diego Union-Tribune, "How to prepare for floods in a disaster," 1 Sep. 2019 San Francisco is redesigning its busiest intersections, a form of engineering triage to stave off a recent surge of road mayhem and traffic deaths. Rachel Swan,, "SF redesigns busy intersections as 2019 traffic fatalities outpace last year," 29 Aug. 2019 As the vehicles approached the intersection, someone in the truck fired several shots at the Escalade, striking Pasillas. Tom Steele, Dallas News, "Suspect in deadly road-rage shooting gets questioned and released by Garland police," 23 Aug. 2019 There are communities who sit at the intersection, and one of those communities is black women. Meena Harris, Glamour, "It's Black Women's Equal Pay Day. No Matter Who You Are, That Should Matter to You," 22 Aug. 2019 The parade will begin at the intersection of North and Pennsylvania streets, heading south on Pennsylvania. Chris Sims, Indianapolis Star, "What you need to know about 101st American Legion National Convention," 21 Aug. 2019 When the truck drove through the intersection, the driver of the SUV hit the rear wheels of the truck, witnesses told the Montgomery County Police reporter. Julian Gill, Houston Chronicle, "Huntsville firefighter in critical condition after rollover crash involving fire truck," 18 Aug. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'intersection.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of intersection

1559, in the meaning defined at sense 1

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Statistics for intersection

Last Updated

13 Sep 2019

Look-up Popularity

Time Traveler for intersection

The first known use of intersection was in 1559

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More Definitions for intersection



English Language Learners Definition of intersection

: the place or point where two or more things come together especially : the place where two or more streets meet or cross each other
: the act or process of crossing or intersecting


in·​ter·​sec·​tion | \ ˌin-tər-ˈsek-shən How to pronounce intersection (audio) \

Kids Definition of intersection

1 : the act or process of crossing or passing across the intersection of line A and line B
2 : the place or point where two or more things (as streets) meet or cross each other
3 : the set of mathematical elements common to two or more sets

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Comments on intersection

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miscellaneous remnants or debris

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