T raffic Definitions of "traffic" The process of trading goods, both import and export The act of buying and selling or bartering as part of a business A disreputable or illegal commercial activity, often clandestine The movement of people or vehicles in a particular area or along a specific route Any vehicles, pedestrians, ships, or planes that are moving along a specific route The transmission of signals or data over a communication system The cargo or passengers that a transport system carries The business specialty that involves moving freight or passengers The act of engaging in the trade of goods or services The act of moving over a certain distance or area The process of engaging in bartering or trade How to use "traffic" in a sentence The police are increasing patrols to manage traffic during the holiday season. The company gained significant profits from traffic in electronic goods. Illegal traffic of wildlife products is a serious issue that concerns the ...