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

About 400 protesters packed the intersection in front of Sen. Dianne Feinstein’s office at 1 Post Street in San Francisco Tuesday, calling on the government to shut down detention facilities holding children. Tatiana Sanchez,, "Reports of disturbing detention conditions on border spark protests in SF," 2 July 2019 The Bramblett’s vehicle was pushed into the intersection and through the opposing lanes of traffic before coming to a final rest on the curb. Carol Robinson |,, "Rod Bramblett wreck warrant: Teen was driving 30 mph over speed limit," 2 July 2019 The incident was reported at approximately 3:45 p.m. Friday when Brockton police received multiple 911 calls reporting a stabbing in the vicinity of 276 Belmont St. and the intersection of Grafton Street. Emily Sweeney,, "Fall River woman charged in Brockton road rage killing held without bail," 1 July 2019 Scott's Irvington duplex is the intersection of those two revelations. Ryan Martin, Indianapolis Star, "'They’re just patching it up': Tenants lack electricity, water in homes Joe Hogsett calls 'transformed'," 1 July 2019 Three billboards at the busy intersection tumbled to the ground. Roger Simmons,, "Freak hail storm dropped 2 feet of ice in Central Florida in 1992 | Pictures," 1 July 2019 The Illinois Department of Transportation also plans to spend $92 million to rebuild the intersection of 95th Street and Stony Island Avenue, which will include reconstruction of railroad bridges, plus bicycle and pedestrian improvements. Mary Wisniewski,, "Lightfoot says she won’t raise Chicago’s gas tax," 1 July 2019 All of these issues — and the intersections among them — deserve more attention, but paid family and medical leave would touch the greatest number of people over their working lives. Vicki Shabo,, "Advice To 2020 Candidates: Talk About Paid Family Leave," 30 June 2019 The intersection of Inkster and Cherry Hill serves as the boundary of Inkster, Garden City and Dearborn Heights. Tanya Wildt, Detroit Free Press, "Woman, child killed when car collides with Inkster police SUV," 29 June 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

5 Jul 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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