Traffic :  (noun)
1: the aggregation of things (pedestrians or vehicles) coming and going in a particular locality during a specified period of time
2: buying and selling; especially illicit trade
3: the amount of activity over a communication system during a given period of time; "heavy traffic overloaded the trunk lines"; "traffic on the internet is lightest during the night"
4: social or verbal interchange (usually followed by `with') ... ( more )

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