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 41-year-old woman was located by police Wednesday night near a column of smoke at the intersection of Churchill Downs Avenue and Santa Anita Drive on Woodland’s north side, the release said. —Sean Campbell, Sacbee.com, 12 June 2026

At the same time, police said that a 41-year-old Hemet man was driving a Nissan Versa east on Ramona Expressway nearing the intersection. —Dean Fioresi, CBS News, 11 June 2026

Freddrell’s ultimate passion lies at the intersection of mass media and entrepreneurship. —Kansas City Star, 11 June 2026

Correa was walking along a crosswalk at an intersection when a bus driver made a left turn and hit him. —Miami Herald, 11 June 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