buying and selling; especially illicit trade | the act of transacting within or between groups (as carrying on commercial activities) |
social or verbal interchange (usually followed by `with') | social or verbal interchange (usually followed by `with') |
the amount of activity over a communication system during a given period of time | mutual dealings or connections or communications among persons or groups |
the aggregation of things (pedestrians or vehicles) coming and going in a particular locality during a specified period of time | |