an occasion when someone buys or sells something, or when money is exchanged or the activity of buying or selling something:
There was no financial transaction between us.
The swift transaction at the cashier's counter left the customer pleasantly surprised.
Online shoppers appreciate the convenience of quick and secure transactions.
The real estate agent facilitated a smooth and transparent transaction between the buyer and seller.
In the bustling market, each vendor engaged in countless transactions throughout the day.
