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

Police were called about 4:45 p.m. Tuesday, Aug. 12, to a two-vehicle crash at the intersection of Vassar and Fairgrove roads in Gilford Township, according to a news release from the Tuscola County Sheriff's Office. —Darcie Moran, Freep.com, 13 Aug. 2025

Dallas police officers responded to the accident about 8 a.m. on Aug. 13 at the intersection of East Clarendon Drive and North Street, near the Dallas Zoo, police said. —Shambhavi Rimal, Fort Worth Star-Telegram, 13 Aug. 2025

The intersection of technology, power, and culture. —Jorge Garay, Wired News, 13 Aug. 2025

The joint operation — carried out by special units from the Boston Police Department, Massachusetts State Police and FBI — focused on the intersection of Massachusetts Avenue and Melnea Cass Boulevard, BPD said on Tuesday. —Gayla Cawley, Boston Herald, 12 Aug. 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