intersection

noun

in·​ter·​sec·​tion ˌin-tər-ˈsek-shən How to pronounce intersection (audio)
 especially in sense 1  ˈin-tər-ˌsek-
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.
Residents and local leaders have said that TCEQ misrepresented the nature of the intersection in a traffic study completed for the application. Fort Worth Star-Telegram, 31 Oct. 2025 The Abu Dhabi oil major partnered with Microsoft to get the views of 850 executives from places like TotalEnergies, OpenAI, and the International Energy Agency on trends at the intersection of AI and energy. Kelsey Warner, semafor.com, 31 Oct. 2025 While emphasizing that the president has not made a final decision on launching strikes, the story said officials indicated that any potential air campaign would focus on sites that lie at the intersection of the Nicolás Maduro regime and the country’s drug-trafficking networks. Antonio María Delgado, Miami Herald, 31 Oct. 2025 The plea—legally impossible but symbolically potent—highlights the limits of judicial authority over prison placements, the strain of the mental health crises inside the federal system, and the uneasy intersection between acts of political violence and debates about personal autonomy at life’s end. Robert Alexander, MSNBC Newsweek, 31 Oct. 2025 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 3 Nov. 2025.

Kids Definition

intersection

noun
in·​ter·​sec·​tion ˌint-ər-ˈsek-shən How to pronounce intersection (audio)
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

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