intersection

noun

in·​ter·​sec·​tion ˌin-tər-ˈsek-shən 

 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

• a intersection 3a

Synonyms

• junction
• corner
• crossroad
• crossing

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

At the intersection of Nations Ford Road and Arrowood Road in southwest Charlotte sits a unique store. —Briah Lumpkins, Charlotte Observer, 8 July 2025

Real impact happens at the intersection of systems—housing, workforce, government, infrastructure and business. —Damien Howard, Forbes.com, 8 July 2025

Full lane closures are expected as crews put new signal poles and signal heads for the installation of left turning lanes at the intersection. —Craig Shoup, The Tennessean, 8 July 2025

Flourishing at all the aforementioned intersections, the trio of Rachell Rojas and twin sisters Cristabel and Anabel Acevedo have defied classification for a decade. —Richard Villegas, Rolling Stone, 7 July 2025

Word History

First Known Use

1559, in the meaning defined at sense 2

Rhymes for intersection

• circumspection
• disaffection
• disconnection
• disinfection
• dorsiflexion
• imperfection
• indirection
• insurrection
• intellection
• interjection
• introjection
• introspection

Kids Definition

intersection

noun

in·​ter·​sec·​tion ˌint-ər-ˈsek-shən 

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