名詞 proposition:

1. (logic) a statement that affirms or denies something and is either true or false
2. a proposal offered for acceptance or rejection
   同義詞：suggestion, proffer
3. an offer for a private bargain (especially a request for sexual favors)
4. the act of making a proposal
   同義詞：proposal
5. a task to be dealt with

動(dòng)詞 proposition:

1. suggest sex to

1. This is the inverse of his earlier proposition.
   這和他早些時(shí)候提的建議截然相反。
2. His proposition is good in theory but cannot be put into practice.
   他的建議在理論上可以，但不能付諸實(shí)現(xiàn)。
3. She was propositioned several times in the course of the evening.
   整個(gè)晚上有人幾次向她提出非分要求。
4. She was propositioned by her boss.
   她的老板向她提出非分的要求。
5. Tunnelling under the English Channel is a big proposition.
   在英吉利海峽海底鑿隧道是一個(gè)大問題。

prop.o.si.tion

n.Abbr. prop.（名詞）縮寫 prop.
A plan suggested for acceptance; a proposal.
提議，建議：建議接受的計(jì)劃；提議
Informal A matter to be dealt with; a task:
【非正式用語】 任務(wù)：要處理的事務(wù)；任務(wù)：
例句：
Finding an affordable apartment will be a difficult proposition.
要找到一間付得起的公寓是件難事

Informal An offer of a private bargain, especially a request for sexual relations.
【非正式用語】 暗中交易的提議：私下交易的提議，尤指對(duì)性關(guān)系的要求
A subject for discussion or analysis.
主題：討論或分析的主題
Logic
【邏輯學(xué)】
A statement in which the subject is affirmed or denied by the predicate.
命題：主題被謂項(xiàng)證實(shí)或否定的陳述
Something that is expressed in a statement, as opposed to the way it is expressed.
（命題中）相反的論述：在陳述中被表達(dá)出來的某事，如與被表達(dá)的方式相對(duì)的某事
A statement containing only logical constants and having a fixed truth-value.
命題：只包含有邏輯常項(xiàng)及具固定真理的陳述
v.tr.（及物動(dòng)詞）
prop.o.si.tioned,prop.o.si.tion.ing,prop.o.si.tions 【非正式用語】
To propose a private bargain to, especially to propose sexual relations with.
秘密交易：向…提出一樁私下交易，尤指提出與…發(fā)生性關(guān)系

來源：
Middle English proposicion
中古英語 proposicion
from Old French proposition
源自 古法語 proposition
from Latin prôpositiô prôpositiôn- [setting out in words]
源自 拉丁語 prôpositiô prôpositiôn- [用語言開頭]
from prôpositus [past participle of] prôpônere [to set forth] * see propose
源自 prôpositus [] prôpônere的過去分詞 [陳述，提出] *參見 propose

【引伸】
prop.osi.tional
adj.（形容詞）
prop.osi.tionally
adv.（副詞）