privacy
The quality or condition of being secluded from the presence or view of others. The state of being free from unsanctioned intrusion: a person's right to privacy.
The state of being concealed; secrecy.
n. 隱私；秘密；隱居；隱居處

詞組短語:
in the privacy of one's thoughts 在內心深處
privacy policy 隱私權政策；隱私策略
right of privacy 隱私權
individual privacy 個人隱私
privacy statement 隱私權聲明
in privacy 秘密地

privy
Made a participant in knowledge of something private or secret: was privy to classified information.
Belonging or proper to a person, such as the British sovereign, in a private rather than official capacity.
Secret; concealed.
An outdoor toilet; an outhouse. A toilet.
Law. One of the parties having an interest in the same matter.
adj. 私人的；不公開的；秘密參與的
n. 有利害關系的人；(無沖洗設施的)廁所(尤指戶外廁所)

例句：
Very few of them were privy to the details of the conspiracy.
他們之中很少人知道密謀的詳情。

private 拯救大兵瑞恩 Saving Private Ryan,這個大家很熟了吧
Designed or intended for one's exclusive use
Of or confined to the individual; personal
Not available for public use, control, or participation
Not holding an official or public position:
A noncommissioned rank in the U.S. Army or Marine Corps that is below private first class.
adj. 私人的；私有的；私下的；無公職的（沒有官方職位或公開職位的）
n. 二等兵：美國陸軍或海軍陸戰隊的非士官軍銜，低于一等兵

詞組短語：
in private 私下地；秘密地
private enterprise 民營企業；私營企業
private sector 私營部門；私營成分
private equity 私募股權；私人股本（equity股票，普通股 ）
private property 私有財產；私有制
private ownership 私人所有制

例句：
The president is paying a private visit to his neighboring country.
總統正在對鄰國作非官方的訪問。
If you go to a private hospital you must pay.
如果你去一家私立醫院就診,你得付費。

privilege legal
A special advantage, immunity, permission, right, or benefit granted to or enjoyed by an individual, class, or caste. See Synonyms at right. Such an advantage, immunity, or right held as a prerogative of status or rank, and exercised to the exclusion or detriment of others.
The principle of granting and maintaining a special right or immunity: a society based on privilege.
Law. The right to privileged communication in a confidential relationship, as between client and attorney, patient and physician, or communicant and priest.
An option to buy or sell a stock, including put, call, spread, and straddle.
To grant a privilege to.
To free or exempt.
n. 特權；優待；基本權利
vt. 給與…特權；特免

例句：
This pass will privilege you to attend the closed hearings.
有了這張通行證你便可以出席不公開的聽證會。

deprive
To take something away from: The court ruling deprived us of any share in the inheritance.
To keep from possessing or enjoying; deny: They were deprived of a normal childhood by the war.
To remove from office.
vt. 使喪失，剝奪

例句：
These misfortunes almost deprived him of his reason.
這些不幸的事情幾乎使他失去理智。
The new laws deprived many people of the most elementary freedoms.
新法律剝奪了許多人的最基本的自由。

privateer
A ship privately owned and crewed but authorized by a government during wartime to attack and capture enemy vessels.
The commander or one of the crew of such a ship.
To sail as a privateer
n. 私掠船；武裝民船；私掠船船長；私掠船船員
vi. 私掠巡航

詞源小故事

16-19世紀期間，西歐很多國家都出臺過類似英國政府頒布的“Letters of Marque”《私掠許可證》，允許船只的私有者可以針對本國以外的違法人士、船隊進行追捕、摧毀等私掠行為。除上述權力外，私掠許可證還允許攻擊、掠奪敵國的商船。