interchange
UK: ˌɪn.təˈtʃeɪndʒ | US: ˈɪn.t̬ɚ.tʃeɪndʒ
n. 1. The act of exchanging things mutually.
n. 2. A road junction where traffic flows are separated at different levels.
vt. 3. To swap or alternate positions, roles, or items.
The word "interchange" combines the Latin prefix inter- (meaning "between" or "among") with the Old French root change (derived from Latin cambiare, "to exchange"). The term originally described mutual exchanges (e.g., ideas, goods) and later evolved in transportation contexts to denote layered road systems allowing seamless transitions between routes. The morphemes reflect a logical progression from literal swapping to structured spatial alternation.
The interchange of ideas during the conference sparked innovation.
The highway interchange reduces traffic congestion by eliminating stoplights.
We agreed to interchange shifts next week.
The cultural interchange between the two countries enriched both societies.
The subway lines interchange at Central Station.