"traffic" in the noun sense
1. traffic
the aggregation of things (pedestrians or vehicles) coming and going in a particular locality during a specified period of time
2. traffic
buying and selling especially illicit trade
3. traffic
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. dealings, traffic
social or verbal interchange (usually followed by `with')
"traffic" in the verb sense
1. traffic
deal illegally
"traffic drugs"
2. traffic
trade or deal a commodity
"They trafficked with us for gold"
Source: WordNet® (An amazing lexical database of English)
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