intersection

noun

in·​ter·​sec·​tion ˌin-tər-ˈsek-shən How to pronounce intersection (audio)
especially in sense 1 ˈin-tər-ˌsek-
Synonyms of intersectionnext
1
: a place or area where two or more things (such as streets) intersect
2
: the act or process of intersecting
3
a
: 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

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
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Ahead, seven New Mexico rentals that sit at the intersection of design and desert living. Angela Tafoya, Vogue, 29 June 2026 The area is at the intersection of Habersham Road near the iconic Landmark Diner. Caroline Silva, AJC.com, 30 June 2026 The way the filmmakers, and their complex subject, craft a story at the intersection of race, history, celebrity, sport and justice is transcendent and unforgettable. Kelly Lawler, USA Today, 29 June 2026 The idea for the exterior dressing of this specific car was to bring the intersection of those surfaces to the fore with the juxtaposition of black lines—first taped off by hand—to provide the abstract zebra-like pattern. Viju Mathew, Robb Report, 30 June 2026 See All Example Sentences for intersection

Word History

First Known Use

1559, in the meaning defined at sense 2

Time Traveler
The first known use of intersection was in 1559

Browse Nearby Words

Cite this Entry

“Intersection.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/intersection. Accessed 7 Jul. 2026.

Kids Definition

intersection

noun
1
: the act or process of intersecting
2
: the place or point where two or more things and especially streets intersect
a busy intersection
3
: the set of mathematical elements shared by two or more sets
especially : the set of points shared by two geometric figures

More from Merriam-Webster on intersection

Love words? Need even more definitions?

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