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

Keep scrolling for more

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
See More

Recent Examples on the Web

Brooklinen is a trusted sheet brand from experts to consumers because the sheets meet at the intersection of quality and value and come in a wide variety of color and fabric choices. Shanon Maglente, Good Housekeeping, "Brooklinen Is Having a Huge Sale on Their Best-Selling Sheets Right Now," 1 May 2019 Like many other young black millennials coming of age, Big is at the intersection of discovering his own desires and being encouraged by his family to take on more responsibility. Prince Shakur, Teen Vogue, ""Native Son" Reflects a World Where Young Black Men Are Often Set Up to Fail," 16 Apr. 2019 Democrats are sweeping beyond the Russia probe into the president’s potential conflicts — his tax returns, financial dealings, Trump Hotel — in the tangled intersection of business and politics. Lisa Mascaro, The Seattle Times, "Oversight or overreach? Democrats wrestle with Trump probes," 24 Mar. 2019 Veganism is for the girl from the ‘hood, single moms, welfare recipients, immigrants, and those at the intersections of all those identities. Amy Quichiz, SELF, "10 Vegans of Color on What Being Vegan Means to Them," 6 Jan. 2019 The Interface is a daily column about the intersection of social media and democracy. Casey Newton, The Verge, "Why we can’t stop debating whether Facebook sells data," 14 Dec. 2018 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

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.

See More

First Known Use of intersection

1559, in the meaning defined at sense 1

Keep scrolling for more

Learn More about intersection

Statistics for intersection

Last Updated

10 May 2019

Look-up Popularity

Time Traveler for intersection

The first known use of intersection was in 1559

See more words from the same year

Keep scrolling for more

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

Keep scrolling for more

Comments on intersection

What made you want to look up intersection? Please tell us where you read or heard it (including the quote, if possible).


using a distributed computer network

Get Word of the Day daily email!

Test Your Vocabulary

Time Traveler Quiz: Which Word Came First?

  • time traveler quiz which word came first
  • Which came first?
Name That Thing

Test your visual vocabulary with our 10-question challenge!


Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!