traffic

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. The passage of people or vehicles along routes of transportation.
2. n. Vehicles or pedestrians in transit: heavy traffic on the turnpike; stopped oncoming traffic to let the children cross.
3. n. The commercial exchange of goods; trade.
4. n. Illegal or improper commercial activity: drug traffic on city streets.
5. n. The business of moving passengers and cargo through a transportation system. See Synonyms at business.
6. n. The amount of cargo or number of passengers conveyed.
7. n. The conveyance of messages or data through a system of communication: routers that manage Internet traffic.
8. n. Messages or data conveyed through such a system: a tremendous amount of telephone traffic on Mother's Day; couldn't download the file due to heavy Internet traffic.
9. n. Social or verbal exchange; communication: refused further traffic with the estranged friend.
10. v. To carry on trade or other dealings: trafficked in liquidation merchandise; traffic with gangsters.

Century Dictionary and Cyclopedia

1. n. An interchange of goods, merchandise, or property of any kind between countries, communities, or individuals; trade; commerce.
2. n. The coming and going of persons or the transportation of goods along a line of travel, as on a road, railway, canal, or steamship route.
3. n. Hence The persons or goods, collectively, passing or carried along a route or routes.
4. n. Dealings; intercourse.
5. n. A piece of business; a transaction.
6. n. The subject of traffic; commodities marketed.
7. To trade; pass goods and commodities from one person to another for an equivalent in goods or money; buy and sell wares or commodities; carry on commerce.
8. To deal; have business or dealings.
9. To exchange in traffic; barter, or buy and sell.
10. To bargain; negotiate; arrange.

Wiktionary

1. n. Pedestrians or vehicles on roads, or the flux or passage thereof.
2. n. Commercial transportation or exchange of goods, or the movement of passengers or people.
3. n. Illegal trade or exchange of goods, often drugs.
4. n. Exchange or flux of information, messages or data, as in a computer or telephone network.
5. v. To pass goods and commodities from one person to another for an equivalent in goods or money; to buy or sell goods; to barter; to trade.
6. v. To trade meanly or mercenarily; to bargain.
7. v. To exchange in traffic; to effect by a bargain or for a consideration.

GNU Webster's 1913

1. v. To pass goods and commodities from one person to another for an equivalent in goods or money; to buy or sell goods; to barter; to trade.
2. v. To trade meanly or mercenarily; to bargain.
3. v. To exchange in traffic; to effect by a bargain or for a consideration.
4. n. Commerce, either by barter or by buying and selling; interchange of goods and commodities; trade.
5. n. Commodities of the market.
6. n. The business done upon a railway, steamboat line, etc., with reference to the number of passengers or the amount of freight carried.

WordNet 3.0

1. n. the amount of activity over a communication system during a given period of time
2. n. the aggregation of things (pedestrians or vehicles) coming and going in a particular locality during a specified period of time
3. v. trade or deal a commodity
4. n. buying and selling; especially illicit trade
5. v. deal illegally
6. n. social or verbal interchange (usually followed by `with')