Question

What does it mean to trade? ( involving math )

Answer 1

trade (trd)
n.
1. The business of buying and selling commodities; commerce. See Synonyms at business.
2. The people working in or associated with a business or industry: a textile-exporting publication for the trade.
3. The customers of a specified business or industry; clientele.
4. The act or an instance of buying or selling; transaction.
5. An exchange of one thing for another.
6. An occupation, especially one requiring skilled labor; craft: the building trades, including carpentry, masonry, plumbing, and electrical installation.
7. The trade winds. Often used in the plural with the.
v. trad·ed, trad·ing, trades
v.intr.
1. To engage in buying and selling for profit.
2. To make an exchange of one thing for another.
3. To be offered for sale: Stocks traded at lower prices this morning.
4. To shop or buy regularly: trades at the local supermarket.
v.tr.
1. To give in exchange for something else: trade farm products for manufactured goods; will trade my ticket for yours.
2. To buy and sell (stock, for example).
3. To pass back and forth: We traded jokes.
adj.
1. Of or relating to trade or commerce.
2. Relating to, used by, or serving a particular trade: a trade magazine.
3. Of or relating to books that are primarily published to be sold commercially, as in bookstores.
Phrasal Verbs:
trade down
To trade something in for something else of lower value or price: bought a new, smaller car, trading the old one down for economy.
trade in
To surrender or sell (an old or used item), using the proceeds as partial payment on a new purchase.
trade on
To put to calculated and often unscrupulous advantage; exploit: children of celebrities who trade on their family names.
trade up
To trade something in for something else of greater value or price: The value of our house soared, enabling us to trade up to a larger place.
[Middle English, course, from Middle Low German.]
trada·ble, tradea·ble adj.

The American Heritage® Dictionary of the English Language, Fourth Edition copyright ©2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
trade [treɪd]
n
1. (Business / Commerce) the act or an instance of buying and selling goods and services either on the domestic (wholesale and retail) markets or on the international (import, export, and entrepôt) markets Related adj mercantile
2. (Clothing, Personal Arts & Crafts / Crafts) a personal occupation, esp a craft requiring skill
3. (Clothing, Personal Arts & Crafts / Crafts) the people and practices of an industry, craft, or business
4. exchange of one thing for something else
5. (Business / Commerce) the regular clientele of a firm or industry
6. (Business / Commerce) amount of custom or commercial dealings; business
7. (Business / Commerce) a specified market or business the tailoring trade
8. (Business / Commerce) an occupation in commerce, as opposed to a profession
9. (Business / Commerce) commercial customers, as opposed to the general public trade only trade advertising
10. Homosexual slang a sexual partner or sexual partners collectively
11. Archaic a custom or habit
vb
1. (Business / Commerce) (tr) to buy and sell (commercial merchandise)
2. to exchange (one thing) for another
3. (Business / Commerce) (intr) to engage in trade
4. (intr) to deal or do business (with) we trade with them regularly
adj
(Business / Commerce) intended for or available only to people in industry or business trade prices See also trade down, trade-in, trade on, trade up
[C14 (in the sense: track, hence, a regular business): related to Old Saxon trada, Old High German trata track; see tread]
tradable , tradeable adj
tradeless adj

Collins English Dictionary – Complete and Unabridged © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003
Trade
See also dues and payment; economics; finance; property and ownership.

cabotage
the act of navigating or trading along a coast.
chreotechnics
Rare. useful arts, as agriculture, commerce, and manufacturing.
coemption
Obsolete, the purchase of all of a given commodity in order to control its price. — coemptive, adj.
duopoly
the market condition that exists when there are only two sellers. — duopolist, n. — duopolistic, adj.
duopsony
the market condition that exists when there are only two buyers. — duopsonistic, adj.
emption
1. Rare. the act of purchasing.
2. Obsolete, the thing purchased. — emptional, adj.
emptor
Law. abuyer.
merchantry
1. merchants collectively.
2. the business of commerce or trade.
monopolism
the practices and system of a monopoly. — monopolist, n. — monopolistic, adj.
monopoly
an exclusive control of a commodity or service in a particular market, or a control that makes possible the manipulation of prices. — monopolist, n. — monopolistic, adj.
monopsony
the market condition that exists when only one buyer will purchase the products of a number of sellers. — monopsonist, n. — monopsonistic, adj.
multiopoly
the condition of free enterprise, without restriction as to the number of sellers of a given product.
multiopsony
a market condition where no restriction on the number of buyers exists. — multiopsonist, n. — multiopsonistic, adj.
oligopoly
the market condition that exists when there are few sellers. — oligopolistic, adj.
oligopsony
a market condition in which there are few buyers. — oligopsonist, n. — oligopsonistic, adj.
paternalism
fatherlike control over subordinates or employees in business. — paternalist, n. — paternalistic, adj.
preferentialism
the policy of giving preferential treatment in international trade. — preferentialist, n.