What does interchange mean?
Interchange means to exchange or swap two things, often by placing them in one another's positions. Its noun use refers either to the act of exchanging or to a junction where roads, railway lines, or other routes meet. The word can also denote a facility or arrangement for exchanging goods, components, information, or services. In technical and commercial contexts, interchange is often more specific than exchange: an interchange fee, for example, is a charge associated with payment-card transactions, while an interchange agreement regulates the exchange of information or services between organizations. The verb is less common than exchange or swap in casual speech but remains useful in formal, mechanical, and transport-related contexts. Its defining feature is reciprocal movement: two items change positions, participants, roles, or routes. The word also underlies familiar forms such as interchangeable, meaning able to be exchanged, and interchangeability, meaning the quality of being able to be exchanged.
To exchange two or more things, especially by placing them in each other's positions or roles.
"The crew interchanged the cables to isolate the damaged section."
The verb is more formal than swap and is especially used in technical, mechanical, and professional contexts.
The act of exchanging or swapping things; a junction where routes connect; or a facility or arrangement for exchanging goods, information, or services.
"The new interchange provides direct access to three major railway lines."
In transport contexts, the word can denote the junction itself or the connection between routes.
The plural is used for separate junctions, connections, or arrangements for exchanging things.
"The map shows the main road interchanges around the city."
Every interchange—whether a transport junction or a swap of components—connects paths that would otherwise remain separate.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does interchange come from?
Interchange was formed in English by combining the prefix inter-, meaning “between” or “among,” with change, in the sense of exchanging one thing for another. The prefix comes from Latin, while change entered English through French from Latin cambiare, a verb associated with exchanging or bartering. The resulting word developed both verbal meanings, such as swapping or substituting, and noun meanings connected with exchanges and transport junctions.
Related word forms
How interchange is actually used
The verb is less common in everyday speech than exchange or swap. In transport contexts, interchange is especially common in British English, while interchange is also widely used in American English for the connecting ramps or junction itself.
Easily confused with interchange
Interchange often emphasizes moving or placing two things in each other's positions, whereas exchange more generally means giving and receiving something in return.
Interchangeable describes things that can be exchanged with one another, while interchange names the act of exchanging them.