trading

n. trade, commerce

v. deal, transact, buy and sell; barter, exchange; purchase

Trading can refer to:Trade, the voluntary exchange of goods, services, or bothInternational trade, importing and exportingTrader (finance), a buyer and seller of financial instruments
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n. trading, buying and selling, dealing, exchanging

(p. pr. & vb. n.)
of Trade
  

(a.)
Venal; corrupt; jobbing; as, a trading politician.
  

(a.)
Frequented by traders.
  

(a.)
Carrying on trade or commerce; engaged in trade; as, a trading company.
  

Buying and selling securities.