cloverleaf - an interchange that does not require left-hand turns

highway, main road - a major road for any form of motor transport

junction - the place where two or more things come together

spaghetti junction - a complicated highway interchange with multiple overpasses

interaction - a mutual or reciprocal action; interacting

reciprocity - mutual exchange of commercial or other privileges

cross-fertilisation, cross-fertilization - interchange between different cultures or different ways of thinking that is mutually productive and beneficial; "the cross-fertilization of science and the creative arts"

dealings, traffic - social or verbal interchange (usually followed by `with')

commerce, commercialism, mercantilism - transactions (sales and purchases) having the objective of supplying commodities (goods and services)

conversion - act of exchanging one type of money or security for another

barter, swap, swop, trade - an equal exchange; "we had no money so we had to live by barter"

foreign exchange - the system by which one currency is exchanged for another; enables international transactions to take place

transfer - cause to change ownership; "I transferred my stock holdings to my children"

sell - exchange or deliver for money or its equivalent; "He sold his house in January"; "She sells her body to survive and support her drug habit"

cash, cash in - exchange for cash; "I cashed the check as soon as it arrived in the mail"

ransom, redeem - exchange or buy back for money; under threat

substitute, replace - put in the place of another; switch seemingly equivalent items; "the con artist replaced the original with a fake Rembrandt"; "substitute regular milk with fat-free milk"

stand in, sub, substitute, fill in - be a substitute; "The young teacher had to substitute for the sick colleague"; "The skim milk substitutes for cream--we are on a strict diet"

swap, swop, switch, trade - exchange or give (something) in exchange for

barter - exchange goods without involving money

trade in, trade - turn in as payment or part payment for a purchase; "trade in an old car for a new one"

alter, change, modify - cause to change; make different; cause a transformation; "The advent of the automobile may have altered the growth pattern of the city"; "The discussion has changed my thinking about the issue"

change by reversal, reverse, turn - change to the contrary; "The trend was reversed"; "the tides turned against him"; "public opinion turned when it was revealed that the president had an affair with a White House intern"