• n. 正號，加號；好處；附加額
• adj. 正的；附加的
• prep. 加，加上
• n. (Plus)人名；(德)普盧斯

來自拉丁語plus,更多，更大，來自PIE*pele,裝滿，填滿，詞源同fill,full.用於數學名詞加號，引申詞義優勢，長處。

plus (n.)

1570s, the oral rendering of the arithmetical sign +, from Latin plus "more, in greater number, more often" (comparative of multus "much"), altered (by influence of minus) from *pleos, from PIE *pele- (1) "to fill" (see poly-).

As a preposition, between two numbers to indicate addition, from 1660s. [Barnhart writes that this sense "did not exist in Latin and probably originated in commercial language of the Middle Ages."] Placed after a whole number to indicate "and a little more," it is attested from 1902. As a conjunction, "and," it is American English colloquial, attested from 1968. As a noun meaning "an advantage" from 1791. Plus fours (1921) were four inches longer in the leg than standard knickerbockers, to produce an overhang, originally a style associated with golfers. The plus sign itself has been well-known since at least late 15c. and is perhaps an abbreviation of Latin et (see et cetera).

1. Three plus six makes nine.

3加6等於9.(注意,此句中的plus是 介詞,plussix是介詞短語,作three的 定語,因此,動詞用makes, 不用make ) .

來自《用法詞典》

2. There are only 35 staff to serve 30,000-plus customers.

隻有35名員工，卻要為3萬多顧客服務。

來自柯林斯例句

3. All vessels were to be built on a cost-plus basis.

所有的船隻都將在成本加利潤的基礎上製造。

來自柯林斯例句

4. Experience of any career in sales is a big plus.

任何銷售領域的工作經驗都是一大優勢。

來自柯林斯例句

5. Send a cheque for £18.99 plus £2 for postage and packing.

請寄上18.99英鎊的支票，外加2英鎊的郵資和包裝費。

來自柯林斯例句