a.

1. 外國的，外國人的；外國僑民的
   A law was passed to protect alien property.

   通過了一項法律保護外國僑民的財產。

2. 性質不同的；不相容的[（+to/from）]
   Her behavior is alien to our ethical values.

   她的行為和我們的倫理標準格格不入。

n.[C]

1. （住在他國的）外國人，僑民
   Enemy aliens were imprisoned during the war.

   戰爭期間敵國僑民遭到監禁。

2. 外星人

vt.

1. 【律】轉讓，讓渡（財產，地產等）

adj.

1. belonging to a foreign country.
   ▸(of a plant or animal species) introduced from another country and later naturalized.
2. unfamiliar and distasteful.
3. relating to or denoting beings from other worlds.

n.

1. a foreigner, especially one who is not a naturalized citizen of the country where they are living.
   ▸an alien plant or animal species.
2. a being from another world.