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

Officers found Catalan at the intersection with gunshot wounds to the neck and ankle, according to a police report. —Tess Kenny, Chicago Tribune, 5 Sep. 2025

Few operate comfortably at the intersection of all three. —Lyssanoel Frater, USA Today, 5 Sep. 2025

In fact, the top feels like the wearable intersection between multiple dreamy Chloé dresses the singer has worn in recent memory. —Emily Tannenbaum, Glamour, 5 Sep. 2025

Field believes one of the key intersections between AI and design is that AI tools will help broaden access, letting more people become designers. —Allie Garfinkle, Fortune, 4 Sep. 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