traffic

nouns

the aggregation of things (pedestrians or vehicles) coming and going in a particular locality during a specified period of time
is a type of (narrower)
several things grouped together or considered as a whole
buying and selling; especially illicit trade
is a type of (narrower)
transactions (sales and purchases) having the objective of supplying commodities (goods and services)
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"
is a type of (narrower)
the activity of communicating; the activity of conveying information
"they could not act without official communication from Moscow"
social or verbal interchange (usually followed by `with')

verbs

deal illegally
"traffic drugs"
domain category
(criminal law) an act punishable by law; usually considered an evil act
"a long record of crimes"
is a type of (narrower)
engage in the trade of
"he is merchandising telephone sets"
trade or deal a commodity
"They trafficked with us for gold"
is derived from
domain category
transactions (sales and purchases) having the objective of supplying commodities (goods and services)
is a type of (narrower)
engage in the trade of
"he is merchandising telephone sets"