#1 interchange n. a junction of highways on different levels that permits traffic to move from one to another without crossing traffic streams. wn
#2 interchange n. [reciprocation, give-and-take] mutual interaction; the activity of reciprocating or exchanging (especially information). wn
#3 interchange v. [substitute, replace, exchange] 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"; "synonyms can be interchanged without a changing the context's meaning". wn
#4 interchange v. [exchange, change] give to, and receive from, one another; "Would you change places with me?"; "We have been exchanging letters for a year". wn
#5 interchange n. [exchange] the act of changing one thing for another thing; "Adam was promised immortality in exchange for his disobedience"; "there was an interchange of prisoners". wn
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