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

Yaroslavsky has been frustrated in getting information on a long-running intersection repair project on La Cienega Boulevard in her Fairfax area district. — Jon Regardie, Los Angeles Times, 30 Oct. 2026

The city announced on social media that the 119th Street intersection with Northgate Street and Nelson Road is back open to traffic, but a nearby bridge remains closed. — Kendrick Calfee, Kansas City Star, 29 Oct. 2026

About three dozen trump protesters gathered at the intersection of Dave Lyle Boulevard and East White Street down the block from the venue. — Charlotte Observer, 29 Oct. 2026

Segal is a curator and scholar focusing on the intersection of contemporary art and technology. — Maximilíano Durón, ARTnews.com, 29 Oct. 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