junction

noun

junc·​tion ˈjəŋ(k)-shən 

1

: an act of joining : the state of being joined

2

a

: a place or point of meeting

b

: an intersection of roads especially where one terminates

c

: a point (as in a thermocouple) at which dissimilar metals make contact

d

: an interface in a semiconductor device between regions with different electrical characteristics

3

: something that joins

junctional

ˈjəŋ(k)-sh(ə-)nəl 

adjective

Synonyms of junction

• intersection
• juncture

Examples of junction in a Sentence

a junction of nerves and muscle

the junction of Route 12 and Route 87

Recent Examples on the Web

The highway was closed all through the morning from Highway 58 in Golden to Highway 119 at the Clear Creek County junction and began reopening in the early afternoon. — Jennifer McRae, CBS News, 25 June 2026

These are carefully compiled for each city, meter-by-meter, junction by junction, before a car can operate there. — New Atlas, 20 June 2026

Bananal Island lies between the Javae and Araguaia rivers at the junction of Brazil's top soy and cattle-producing states of Tocantins, Mato Grosso and Para. — ABC News, 19 June 2026

Most importantly, the Cajon Pass, at the junction of the San Andreas and San Jacinto faults, could facilitate a joint rupture of the two faults. — Janet Loehrke, USA Today, 19 June 2026

Word History

Etymology

Latin junction-, junctio, from jungere to join — more at yoke

First Known Use

1711, in the meaning defined at sense 1

Phrases Containing junction

• box junction
• gap junction
• Josephson junction

Rhymes for junction

• function
• unction
• adjunction
• compunction
• conjunction
• disjunction
• dysfunction
• injunction
• malfunction
• eigenfunction
• multifunction
• heterojunction

Kids Definition

junction

noun

junc·​tion ˈjəŋ(k)-shən 

1

: an act of joining : the state of being joined

2

: a place or point of meeting

a railroad junction

Medical Definition

junction

noun

junc·​tion ˈjəŋ(k)-shən 

: a place or point of meeting

the structure of the synaptic junction as revealed by electron microscopy

see neuromuscular junction

junctional

-shnəl, -shən-ᵊl 

adjective