- a place where several routes, lines, or roads meet, link, or cross each other: a railway junction
- a point on a motorway where traffic may leave or join it
- a contact between two different metals or other materials: a thermocouple junction
- a transition region between regions of differing electrical properties in a semiconductor
- the act of joining or the state of being joined
WordReference Random House Learner's Dictionary of American English © 2026
junc•tion /ˈdʒʌŋkʃən/USA pronunciation
n. [countable]
WordReference Random House Unabridged Dictionary of American English © 2026- a place or point where two or more things meet or are joined, such as a station where railroad lines meet, cross, or diverge, or an intersection of roads.
junc•tion
( jungk′shən),USA pronunciation n.
junc′tion•al, adj.
- an act of joining;
combining. - the state of being joined;
union. - a place or point where two or more things are joined, as a seam or joint.
- a place or point where two or more things meet or converge.
- Rail Transporta place or station where railroad lines meet, cross, or diverge.
- Transportan intersection of streets, highways, or roads.
- something that joins other things together:He used the device as a junction between the branch circuit and the main power lines.
- Latin junctiōn- (stem of junctiō), equivalent. to junct(us), past participle of jungere to join (jung- join + -tus past participle suffix) + -iōn- -ion
- 1705–15
- 3. union, linkage, coupling; welt. 7. connection. Junction, juncture refer to a place, line, or point at which two or more things join. A junction is also a place where things come together:the junction of two rivers.A juncture is a line or point at which two bodies are joined, or a point of exigency or crisis in time:the juncture of the head and neck; a critical juncture in a struggle.
Collins Concise English Dictionary © HarperCollins Publishers::
junction /ˈdʒʌŋkʃən/ n