transaction

n. interaction between two parties, negotiation, settlement; business deal

A transaction is an agreement, communication, or movement carried out between separate entities or objects, often involving the exchange of items of value, such as information, goods, services and money.Financial transactionDatabase transactionAtomic transactionTransaction processingPOS TransactionTransaction may also refer to:“Transaction,” an episode of the Death Note anime series, see List of Death Note episodes
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Noun
1. the act of transacting within or between groups (as carrying on commercial activities); "no transactions are possible without him"; "he has always been honest is his dealings with me"
(synonym) dealing, dealings
(hypernym) group action
(hyponym) commerce, commercialism, mercantilism
(derivation) transact

n. transaction, dealing, settlement, deal

(n.)
The doing or performing of any business; management of any affair; performance.
  

(n.)
That which is done; an affair; as, the transactions on the exchange.
  

(n.)
An adjustment of a dispute between parties by mutual agreement.