exchange

noun

1. (countable, uncountable)An act of exchanging or trading.

   “All in all, it was an even exchange.”

   “an exchange of cattle for grain”

   “I'll help you out this time, depending on what can you give me in exchange.”

2. (countable, uncountable)A place for conducting trading.

   “The stock exchange is open for trading.”

   “The old corn exchange has been converted into a music venue.”

3. (countable, uncountable)Ellipsis of telephone exchange.
4. (countable, uncountable)Ellipsis of telephone exchange.

   “The 555 exchange is reserved for use by the phone company, which is why it's often used in films.”

   “NPA-NXX-1234 is standard format, where NPA is the area code and NXX is the exchange.”

5. (countable, uncountable)A conversation.

   “After a lengthy exchange with the manager, we were no wiser.”

   “'Why bother with the daily grind when you can go to Mosul, get paid $400 a month, get a wife – and live an Islamic way,' went an exchange between two men overheard by a fellow passenger in a taxi. Rumour has it that a woman whose husband died fighting with Isis now receives a generous widow's pension from jihadi coffers.”

   “The monarch and the prime minister meet weekly, currently on Wednesdays, to discuss matters of state. There is no one else in the room, and many former prime ministers have spoken about how much they have enjoyed the weekly exchanges.”

6. (countable, uncountable)The loss of one piece and associated capture of another.
7. (countable, uncountable, usually, with-definite-article)The loss of one piece and associated capture of another.
8. (countable, obsolete, uncountable)The thing given or received in return; especially, a publication exchanged for another.

   “Lady, as you are mine, I am yours, I giue away my selfe for you, and doat vpon the exchange.”

9. (countable, uncountable)The transfer of substances or elements like gas, amino-acids, ions etc. sometimes through a surface like a membrane.
10. (countable, uncountable)The difference between the values of money in different places.
11. (England, Northern-Ireland, Wales, abbreviation, alt-of, clipping, countable, uncountable)Clipping of exchange of contracts.

verb

1. (transitive)To trade or barter.

   “I'll gladly exchange my place for yours.”

2. (figuratively, transitive)To mutually direct at each other.

   “The opposing soldiers exchanged fire across the burning streets.”

3. (transitive)To replace with, as a substitute.

   “I'd like to exchange this shirt for one in a larger size.”

   “Since his arrest, the mob boss has exchanged a mansion for a jail cell.”

4. (England, Northern-Ireland, Wales, abbreviation, alt-of, clipping)Clipping of exchange contracts.
5. (transitive)To recommend and get recommendations.