intersect

verb

in·​ter·​sect ˌin-tər-ˈsekt How to pronounce intersect (audio)
intersected; intersecting; intersects
Synonyms of intersectnext

transitive verb

: to pierce or divide by passing through or across : cross
a comet intersecting earth's orbit
one line intersects another

intransitive verb

1
: to meet and cross at a point
lines intersecting at right angles
2
: to share a common area : overlap
where morality and self-interest intersect

Synonyms of intersect

Examples of intersect in a Sentence

A dry stream bed intersects the trail in several places. Line A intersects with line B. The two roads intersect at the edge of town.
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.
To overcome this, researchers at ETH Zurich used a subtler effect called the geometric phase, which exploits the path taken by atoms through an artificial ‘crystal of light’ built from intersecting laser beams. Ameya Paleja, Interesting Engineering, 12 May 2026 The four stops deemed eligible for SB 79 are the two on Park Boulevard and two transit plazas, one where Interstate 15 intersects with El Cajon Boulevard and another where I-15 intersects with University Avenue. David Garrick, San Diego Union-Tribune, 9 May 2026 For the designer, the Louvre functions as both visual resource and symbolic framework, where art history intersects with contemporary fashion. Renan Botelho, Footwear News, 8 May 2026 With its proximity to Los Angeles and deep ties to the entertainment industry, the city is increasingly exploring how public space activation can intersect with private sector collaboration. Daily News, 8 May 2026 See All Example Sentences for intersect

Word History

Etymology

Latin intersectus, past participle of intersecare, from inter- + secare to cut — more at saw

First Known Use

1615, in the meaning defined at transitive sense

Time Traveler
The first known use of intersect was in 1615

Browse Nearby Words

Cite this Entry

“Intersect.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/intersect. Accessed 16 May. 2026.

Kids Definition

intersect

verb
in·​ter·​sect ˌint-ər-ˈsekt How to pronounce intersect (audio)
1
: to divide by passing through or across : cross
one line intersecting another
2
: to meet and cross at one or more points
overlapping circles intersect at two points

More from Merriam-Webster on intersect

Love words? Need even more definitions?

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

More from Merriam-Webster