Â© PMA of Georgia 2010. Venting. This concept of the plumbing system breathing (while. conceptually accurate) is somewhat confusing to a. craftsperson when trying to understand specifically what. the purpose of the vent system is.
Definition of traffic jam. : a situation in which a long line of vehicles on a road have stopped moving or are moving very slowly stuck in a traffic jam.
Wiktionary(0.00 / 0 votes)Rate this definition: 1  traffic(Noun) Pedestrians or vehicles on roads, or the flux or passage thereof. Traffic is slow at rush hour. 2  traffic(Noun) Commercial transportation or exchange of goods, or the movement of passengers or people. 3  traffic(Noun) Illegal trade or exchange of goods, often drugs.