名詞 extortion:

1. an exorbitant charge
2. unjust exaction (as by the misuse of authority)
3. the felonious act of extorting money (as by threats of violence)

1. A dishonest business or practice, especially one that obtains money through fraud or extortion.
   敲詐不誠(chéng)實(shí)的生意或行為，尤指通過欺詐或勒索得到錢
2. Excessive or unjust demand; extortion.
   強(qiáng)索過分的或不公正的要求; 勒索

ex.tor.tion

n.（名詞）
The act or an instance of extorting.
勒索，敲詐：敲詐或勒索的行為或事例
Illegal use of one`s official position or powers to obtain property, funds, or patronage.
強(qiáng)求，逼取：不正當(dāng)?shù)倪\(yùn)用政治地位或權(quán)力去獲得財(cái)產(chǎn)、資金或官職
An excessive or exorbitant charge.
過高要價(jià)：過分的或過高的要價(jià)
Something extorted.
被勒索的東西

【引伸】
extor.tionar.y
extor.tionist 或
extor.tioner
n.（名詞）