n.

1. 貿易，交易，商業[U]
   Japan does lots of trade with the United States.

   日本與美國間的貿易頻繁。

2. 行業[the S]
3. 手藝；職業[C][U]
   He is a blacksmith by trade.

   他是個鐵匠。

4. 營業額，交易量[S][（+in）]
5. 同業者，同行[the S][G]
6. 交換[U][C]
   He got these eggs as a trade.

   他交換到這些雞蛋。

7. 顧客，主顧[U]
   That department store has a lot of trade.

   那家百貨公司顧客很多。

8. 【氣】貿易風，信風[the P]

vt.

1. 交換[（+for）]
   She traded three apples for a bunch of bananas.

   她用三顆蘋果換得一串香蕉。

   Can I trade my tobacco for your matches?

   我用菸草換你的火柴行嗎？

vi.

1. 做買賣，進行交易[（+in/with）]
   He trades in silk.

   他經營絲綢貿易。

2. 【美】做主顧[（+at/with）]
   I used to trade at that store.

   過去我常在那家商店買東西。

n.

1. the buying and selling of goods and services.
   ▸N. Amer. (in sport) a transfer.
2. a job requiring manual skills and special training.
3. (the trade) [treated as sing. or pl.] a particular area of business.
   ▸dated, chiefly derogatory the practice of making one's living in business, as opposed to in a profession or from unearned income.
4. a trade wind.

v.

1. buy and sell goods and services.
   ▸buy or sell (an item or product).
   ▸(especially of shares or currency) be bought and sold at a specified price.
   ▸N. Amer. transfer (a player) to another team.
2. exchange, typically as a commercial transaction.
   ▸give and receive (insults or blows).
   ▸ (trade something in) exchange a used article in part payment for another.
   ▸ (trade something off) exchange something of value, especially as part of a compromise.
3. (trade on) take advantage of.