Generally I see

yìngjí chūkǒu

indicating an emergency exit on a bus, whereas I see

ānquán chūkǒu

indicating an emergency exit in a building. I'm not clear on the difference between them.

Question: What's the difference between 应急出口 and 安全出口 which both mean "emergency exit"?

Looking at dict.cn:

This makes me suspect that an 应急出口 can only be used in the case of an emergency, whereas an 安全出口 can be used at other times too. But I may be reading too much into this.

  • baike.baidu.com/item/%E5%AE%89%E5%85%A8%E5%87%BA%E5%8F%A3/… 安全出口 Fire escape vs. baike.baidu.com/item/%E7%B4%A7%E6%80%A5%E5%87%BA%E5%8F%A3/… 紧急出口 Emergency exit
    – Mou某
    Apr 3, 2018 at 2:21
  • bkrs: 应急出口 escape hatch ; emergency exit 翼上应急出口(水上溅落时) escape hatch onto wing during splashdown 安全出口 emergency exit(door); exit; escape exit; emergency opening; emergency outlet; fire escape; fire exit 紧急出口 emergency exit 紧急出口标志 紧急出口照明 紧急出口窗 紧急出口窗户 紧急出口门 for images see google.com/…
    – user6065
    Apr 3, 2018 at 3:16
  • Both mean the same things. Regardless whether anyone use the exit for any other purpose, the exit sign mean the exit should never be blocked in any way.
    – mootmoot
    Apr 3, 2018 at 15:37

2 Answers 2


They are just two different ways to tell you where you can go safely in emergency case.

As you said,

  • 应急 = emergency (actually emergency is 紧急; 应急 is "for emergency", which is short for 因应紧急)
  • 安全 = safety

And they really are

应急出口 (safety) exit for emergency

安全出口 safety exit (for emergency)


应急出口 means it’s an escape in case of emergency (literally “emergency exit), while 安全出口 means it’s an safe escape (in case of emergency) (literally “safe exit). Both probably indicate an emergency exit, and differences are just in context.

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