a.[Z]

1. 外国的
   He likes collecting foreign stamps.

   他喜欢收集外国邮票。

2. 陌生的；不属于本身的；不适合的[F][（+to）]
   Deception was foreign to his nature.

   欺骗和他的本性格格不入。

3. 外来的；异质的[B]
   The oculist removed a foreign object from his eye.

   眼科医生从他眼中除去一个异物。

adj.

1. from, in, or characteristic of a country or language other than one's own.
   ▸dealing with or relating to other countries.
2. coming or introduced from outside.
3. (usu. foreign to) unfamiliar or uncharacteristic.