buy, purchase

名詞 purchase:

1. the acquisition of something for payment
2. something acquired by purchase
3. a means of exerting influence or gaining advantage
4. the mechanical advantage gained by being in a position to use a lever
   同義詞：leverage

動詞 purchase:

1. obtain by purchase; acquire by means of a financial transaction
   同義詞：buy

1. You can rely on your solicitor's professionalism in dealing with the house purchase.
   你盡可依靠律師處理購房事宜。
2. The purchase price is less if you pay by cash.
   付現(xiàn)金的話，價錢便宜些。
3. They purchased life at the expenses of honor.
   他們以犧牲名譽為代價換得了生命。
4. She made several purchases in the dress shop.
   她在服裝店里買了幾樣東西。
5. He managed to secure a loan to purchase a house.
   他設(shè)法弄到一筆貸款買了一棟房子。

pur.chase

v.tr.（及物動詞）
pur.chased,pur.chas.ing,pur.chas.es
To obtain in exchange for money or its equivalent; buy.
購買：通過交換貨幣或其等價物而得到；買
To acquire by effort; earn.
通過努力而獲得；掙得
To move or hold with a mechanical device, such as a lever or wrench.
用杠桿移動：用如杠桿或板鉗等機械裝置移開或控制
n.（名詞）

The act or an instance of buying.
購買：購買的動作或例子
Something bought.
被購買的東西
Acquisition through the payment of money or its equivalent.
交換：通過交付貨幣或其等價物而獲得
A grip applied manually or mechanically to move something or prevent it from slipping.
緊抓：用手工或機械裝置移動某物或防止其打滑時所使用的牢靠的立足點
A device, such as a tackle or lever, used to obtain mechanical advantage.
似杠桿的設(shè)計：如杠桿或滑車等用于取得機械上的方便的設(shè)計
A position, as of a lever or one`s feet, affording means to move or secure a weight.
支撐的位置：如杠桿上的位置或某人的雙腳等用于移動或支撐重量的位置

A means of increasing power or influence.
手段：擴大力量或影響的方法
An advantage that is used in exerting one`s power.
優(yōu)勢：某人實現(xiàn)權(quán)利所使用的利益手段

來源：
Middle English purchasen [to pursue, purchase]
中古英語 purchasen [追求購買]
from Old French purchacier
源自 古法語 purchacier
pur- [forth] from Latin prô- * see per
pur- [向前方] 源自 拉丁語 prô- *參見 per
chacier [to chase] * see chase
chacier [追求] *參見 chase

【引伸】
pur.chaser
n.（名詞）