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

Located at the junction of three continents—Europe, Asia, and Africa—the region has historically been a crossroads for conquerors, peoples, trade, and ideas. — Britannica Editors, Encyclopedia Britannica, 9 Sep. 2026

But at the junction of Sexta Calle and Tercera Avenida, Molly’s feet drag. — Literary Hub, 3 Sep. 2026

Concrete is important again here, dictating the lack of material variation throughout the museum, the uniform thickness of the gallery walls, and the minimal slots of light at the junctions of many walls and ceilings. — Katy Barkan, Artforum, 1 Sep. 2026

The measurements showed that internal dendrites formed at defects such as pores and grain-boundary junctions. — Neetika Walter, Interesting Engineering, 28 Aug. 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