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

• 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

This mysterious part of the ocean is at the junction of two powerful currents, one of which is salty and warm, while the other is cold and rich in nutrients, creating a highly biodiverse environment, experts said. —Lauren Liebhaber, Miami Herald, 1 Aug. 2025

From Earth’s perspective, the junction of the disks resembles the number eight lying down, similar to the infinity symbol (∞). —Jorge Garay, Wired News, 22 July 2025

Colorado 347 is remains closed at the junction of U.S. 50. —Katie Langford, Denver Post, 19 July 2025

Likewise, the throttle felt lethargic when pulling out of junctions in anything but Go Kart mode, which forced me to sink the throttle a bit more, causing the car to jolt forward. —Matthew MacConnell, Forbes.com, 16 July 2025

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
• inunction
• malfunction
• eigenfunction
• multifunction

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