Place Noun + 外
外 (wài) means "outside" or "beyond" and is used as a postposition placed after a noun to indicate a location outside of something. For example, 学校外 means "outside the school." It is the opposite of 内 or 里 (inside).
学校外有一家很好吃的面馆。
Xuéxiào wài yǒu yì jiā hěn hǎochī de miànguǎn.
There is a very delicious noodle restaurant outside the school.
窗户外下着大雨,我们出不去了。
Chuānghù wài xià zhe dàyǔ, wǒmen chū bù qù le.
It's raining heavily outside the window; we can't go out.
公司外停了好多车,都是来面试的人。
Gōngsī wài tíng le hǎo duō chē, dōu shì lái miànshì de rén.
There are many cars parked outside the company; they all belong to people here for interviews.