mar·ket 
(märkĭt)
(märkĭt)n.
1.
a. A public gathering held for buying and selling goods or services: a weekly flower market.
b. An open space or a building where goods or services are offered for sale by multiple sellers: bought the chair at the downtown antiques market.
c. A store or shop that sells agricultural produce: bought vegetables from the corner market.
2.
a. A system of exchange in which prices are determined by the interaction of multiple, competing buyers and sellers: an electronic market for trading pollution credits.
b. A similar system in which information or ideas are evaluated by multiple competing interests.
3.
a. The buyers and sellers for a particular good or service or within a particular region: recent college graduates entering the US labor market.
b. The business transacted between such sellers and buyers: a slump in the housing market.
c. The price of a particular good or service as determined by supply and demand: The gold market climbed for the fifth straight day.
d. The demand for a particular commodity: a big market for denim; a growth market.
4. A standing commitment to buy and sell a given security at stated prices: a brokerage that made a market in the company's stock.
5. A subdivision of a population considered as consumers: targeting the teen market; a new product for the West Coast market.
6. The market price: executed the sale at market.
v. mar·ket·ed, mar·ket·ing, mar·kets
v.tr.
1. To offer for sale: merchants marketing their wares in the souk.
2. To try to make (a product or service) appealing to particular groups of consumers; promote by marketing.
v.intr.
Idioms: 1. To deal in a market; engage in buying or selling.
2. To buy household supplies: We marketed for a special Sunday dinner.
in the market
Interested in buying: We are in the market for a used car.
on the market
1. Available for buying: Many kinds of seasonal flowers are on the market.
2. Up for sale: They put the family business on the market.
[Middle English, from Old North French, from Vulgar Latin *marcātus, from Latin mercātus, from past participle of mercārī, to buy, from merx, merc-, merchandise.]