transaction

noun | \ tran-ˈzak-shən, -ˈsak- \ | trans·ac·tion

1. : something transacted; especially : an exchange or transfer of goods, services, or funds : an exchange or transfer of goods, services, or funds

2. a : an act, process, or instance of transacting

   b : an action or activity involving two parties or things that reciprocally affect or influence each other

3. : an onerous contract that is intended by the parties to prevent or end actual or possible litigation and in which they make reciprocal concessions — compare accord, satisfaction