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. 隐私；秘密；隐居；隐居处

词组短语:
in the privacy of one's thoughts 在内心深处
privacy policy 隐私权政策；隐私策略
right of privacy 隐私权
individual privacy 个人隐私
privacy statement 隐私权声明
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；不公开的；秘密参与的
n. 有利害关系的人；(无冲洗设施的)厕所(尤指户外厕所)

例句：
Very few of them were privy to the details of the conspiracy.
他们之中很少人知道密谋的详情。

private 拯救大兵瑞恩 Saving Private Ryan,这个大家很熟了吧
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；无公职的（没有官方职位或公开职位的）
n. 二等兵：美国陆军或海军陆战队的非士官军衔，低于一等兵

词组短语：
in private 私下地；秘密地
private enterprise 民营企业；私营企业
private sector 私营部门；私营成分
private equity 私募股权；私人股本（equity股票，普通股 ）
private property 私有财产；私有制
private ownership 私人所有制

例句：
The president is paying a private visit to his neighboring country.
总统正在对邻国作非官方的访问。
If you go to a private hospital you must pay.
如果你去一家私立医院就诊,你得付费。

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. 特权；优待；基本权利
vt. 给与…特权；特免

例句：
This pass will privilege you to attend the closed hearings.
有了这张通行证你便可以出席不公开的听证会。

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. 使丧失，剥夺

例句：
These misfortunes almost deprived him of his reason.
这些不幸的事情几乎使他失去理智。
The new laws deprived many people of the most elementary freedoms.
新法律剥夺了许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；武装民船；私掠船船长；私掠船船员
vi. 私掠巡航

词源小故事

16-19世纪期间，西欧很多国家都出台过类似英国政府颁布的“Letters of Marque”《私掠许可证》，允许船只的私有者可以针对本国以外的违法人士、船队进行追捕、摧毁等私掠行为。除上述权力外，私掠许可证还允许攻击、掠夺敌国的商船。