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

Besides making out at two very busy intersections, the couple has gotten around, spending some time in Bellevue and Seattle. Alison Caporimo, Seventeen, "Justin Bieber Recreated A Date He Had With Selena Gomez With Wife Hailey Baldwin," 18 Dec. 2018 There’s a vibe of Neo and Morpheus in The Matrix, but instead of trading martial arts moves or leaping off buildings, I’m transported to the center of a busy intersection inside a Walmart store during Black Friday. Patrick Sisson, Vox, "In Walmart’s virtual reality simulation, Black Friday never ends," 15 Nov. 2018 Depending on which of the wires on the opposite block was active, only a single intersection would be active. John Timmer, Ars Technica, "Memristors built with 2-nanometer-thick parts," 14 Nov. 2018 Two people have been killed while riding scooter-share over the past year, including a death in Washington, D.C. where a Lime scooter rider was hit and dragged through a busy intersection by a driver in an SUV. Alissa Walker, Curbed, "Bird, Lime named in class-action lawsuit," 22 Oct. 2018 Many of Garcia’s photos are of cars parked in the green bike boxes at busy intersections downtown, such as 11th and Main streets. Sarah Gish, kansascity, "Will Kansas City ever be bike-friendly? The city is about to roll out a plan," 13 July 2018 In its place, the city passed a new law that prohibited soliciting handouts from cars stopped at intersections. Kate Santich,, "Downtown Orlando panhandling soaring, leaders say," 9 July 2018 At the intersection in Xiangyang, jaywalking has decreased. Paul Mozur, New York Times, "Inside China’s Dystopian Dreams: A.I., Shame and Lots of Cameras," 8 July 2018 Traffic circles were created in Europe to reduce the number of stop signs at intersections and promote traffic flow. Mark Phelan, Detroit Free Press, "Zipper merge will upset other drivers. Why you should do it anyway.," 6 July 2018

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

15 Mar 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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a shady place in a garden or forest

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