the skilled practice of a practical occupation; "he learned his trade as an apprentice"
the commercial exchange (buying and selling on domestic or international markets) of goods and services; "Venice was an important center of trade with the East"; "they are accused of conspiring to constrain trade"
the business given to a commercial establishment by its customers; "even before noon there was a considerable patronage"
exchange or give (something) in exchange for
turn in as payment or part payment for a purchase; "trade in an old car for a new one"
engage in the trade of; "he is merchandising telephone sets"
be traded at a certain price or under certain conditions; "The stock traded around $20 a share"
(physics) the transfer of energy between elementary particles or between an elementary particle and a field or between fields; mediated by gauge bosons
the capacity for rational thought or inference or discrimination; "we are told that man is endowed with reason and capable of distinguishing good from evil"
a fact that logically justifies some premise or conclusion; "there is reason to believe he is lying"
an explanation of the cause of some phenomenon; "the reason a steady state was never reached was that the back pressure built up too slowly"
a rational motive for a belief or action; "the reason that war was declared"; "the grounds for their declaration"
think logically; "The children must learn to reason"
decide by reasoning; draw or come to a conclusion; "We reasoned that it was cheaper to rent than to buy a house"
the process of ionizing; the formation of ions by separating atoms or molecules or radicals or by adding or subtracting electrons from atoms by strong electric fields in a gas
the condition of being dissociated into ions (as by heat or radiation or chemical reaction or electrical discharge); "the ionization of a gas"
(psychoanalysis) the process whereby emotions are passed on or displaced from one person to another; during psychoanalysis the displacement of feelings toward others (usually the parents) is onto the analyst
a particular instance of selling; "he has just made his first sale"; "they had to complete the sale before the banks closed"
the general activity of selling; "they tried to boost sales"; "laws limit the sale of handguns"
an occasion (usually brief) for buying at specially reduced prices; "they held a sale to reduce their inventory"; "I got some great bargains at their annual sale"
an agreement (or contract) in which property is transferred from the seller (vendor) to the buyer (vendee) for a fixed price in money (paid or agreed to be paid by the buyer); "the salesman faxed the sales agreement to his home office"
the state of being purchasable; offered or exhibited for selling; "you'll find vitamin C for sale at most pharmacies"; "the new line of cars will soon be on sale"