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

In addition to the new tenants, Younger Partners has been making improvements to the district’s landscaping and the illuminated ring at the intersection of Crockett Street and Currie Street. — Harrison Mantas, Fort Worth Star-Telegram, 22 July 2026

But just as Canfield caught up with the car at an intersection, and turned off his siren, the Malibu drove into a parking lot, went around a building, and reentered a street. — Eric Adler, Kansas City Star, 21 July 2026

Flanz is dishing about the moments that have made The Daily Show, from the team first finding their footing to becoming an immensely popular, Emmy-winning series at the intersection of current events and entertainment. — Angela Andaloro, PEOPLE, 21 July 2026

The Eastridge development at the intersection of Bailey Road and Sterling Avenue will include 73 new single-family homes on 46 acres. — Talia McWright, Twin Cities, 21 July 2026

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