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 of intersection

• 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

Otero’s body was found along Big Bug Creek, near its intersection with the Agua Fria River, miles away from where the vehicle Otero was driving was swept into floodwaters. —Michelle Cruz, AZCentral.com, 21 Nov. 2025

With technology advancing rapidly, the intersection of presidential identity, digital creativity and public perception will only become more prominent in the months ahead. —Amir Daftari, MSNBC Newsweek, 21 Nov. 2025

Police reported observing Smith's vehicle making a U-turn on Baxter Avenue across multiple lanes, including a crosswalk, near the intersection with Highland Avenue. —Caroline Neal, Louisville Courier Journal, 21 Nov. 2025

Private credit thrives in precisely this intersection, where structure can integrate both sides of the balance sheet. —Joseph Glatt, Sportico.com, 21 Nov. 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