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

The trend sits at the intersection of sleepmaxxing, wellness rituals and self-tracking. — Samantha Agate, Fort Worth Star-Telegram, 23 Oct. 2026

An officer was near the intersection of 7th Street and La Cadena Drive and then followed a man in a black Chevrolet Silverado pickup truck, according to the video. — Summer Lin, Los Angeles Times, 23 Oct. 2026

It is assigned to Fire Station 85, the district’s administrative and emergency response headquarters, at the intersection of Wilson and El Dorado Hills boulevards. — Daniel Lempres, Sacbee.com, 22 Oct. 2026

Camera footage showed that Lopez’s truck approached the stale green light at 165th Street at a high rate of speed, which changed to yellow as the truck went through the intersection, court records state. — Post-Tribune, Chicago Tribune, 22 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