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

How To Prune Succulents When pruning succulents, always cut at the base of the plant or right at the junction with the main stem. —Brandee Gruener, Southern Living, 26 Feb. 2026

These brain cells also encourage the formation of synapses, the junction where nerve signals pass from one neuron to another, which are the foundation of brain function, learning and memory. —Sandee Lamotte, CNN Money, 25 Feb. 2026

Instead, Mont Sutton fans out with more than 200 trail junctions, turning each run into a choose-your-own-adventure kind of experience. —Claire Sibonney, Travel + Leisure, 23 Feb. 2026

Poppies were reported at the junction of Baseline and Gila trails. —Roger Naylor, AZCentral.com, 21 Feb. 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
• 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