exchange

chemical process in which one atom or ion or group changes places with another

a mutual expression of views (especially an unpleasant one)

“they had a bitter 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”

the act of giving something in return for something received

“deductible losses on sales or exchanges of property are allowable”

a workplace that serves as a telecommunications facility where lines from telephones can be connected together to permit communication

a workplace for buying and selling; open only to members

give to, and receive from, one another

“Would you change places with me?”

“We have been exchanging letters for a year”

“They exchange the goods”

exchange or replace with another, usually of the same kind or category

“Could you convert my dollars into pounds?”

“He changed his name”

“convert centimeters into inches”

“convert holdings into shares”

change over, change around, as to a new order or sequence

hand over one and receive another, approximately equivalent

“exchange prisoners”

“exchange employees between branches of the company”

put in the place of another; switch seemingly equivalent items

“the con artist replaced the original with a fake Rembrandt”

“substitute regular milk for fat-free milk”

“synonyms can be interchanged without changing the context's meaning”

exchange a penalty for a less severe one