expatriate

n. 移居国外者, 侨民, 被流放者, 背井离乡者
vt. 逐出国外, 脱离国籍, 放逐
vi. 移居国外
【法】 脱离国籍者, 移居国外者, 被流放者

名词:expatriation 动词过去式:expatriated 过去分词:expatriated 现在分词:expatriating 第三人称单数:expatriates 

ex.pa.tri.ate

v.（动词）
ex.pa.tri.at.ed,ex.pa.tri.at.ing,ex.pa.tri.ates
v.tr.（及物动词）
To send into exile.See Synonyms at banish
流放参见 banish
To remove (oneself) from residence in one`s native land.
移居国外
v.intr.（不及物动词）
To give up residence in one`s homeland.
移居国外：放弃在自己国家居住
To renounce allegiance to one`s homeland.
放弃原国籍：放弃自己的国籍
n.（名词）

One who has taken up residence in a foreign country.
移居国外者：居住在国外的人
One who has renounced one`s native land.
放弃自己国籍的人
adj.（形容词）

Residing in a foreign country; expatriated.
定居在国外的；移居国外的

来源：
Medieval Latin expatri3re expatri3t-
中世纪拉丁语 expatri3re expatri3t-
Latin ex- [ex-]
拉丁语 ex- [前缀，表.从前的，前任的.]
Latin patria [native land] from patrius [paternal] from pater [father] * see p…ter-
拉丁语 patria [本国] 源自 patrius [父亲的] 源自 pater [父亲] *参见 p…ter-

【引伸】
expa.tria.tion
n.（名词）