danger
/ˈdeɪndʒə(r)/noun
mass noun
1- the possibility of suffering harm or injury危险：
his life was in danger.
他有生命危险。
1.1
- count noun a person or thing that causes or is likely to cause harm or injury危险人物（或事物）。
1.2
- the possibility of something unwelcome or unpleasant危险, 威胁：
there was no danger of the champagne running out.
香槟酒不可能被喝完。
1.3
- Brit. the status of a railway signal indicating that the line is not clear and that a train should not proceed〈英〉（铁路信号的）危险示意, 前方有险标示。
短语
in danger of
- likely to incur or to suffer from处于…危险之中：
the animal is in danger of extinction.
这种动物濒临灭绝。
out of danger
- (of a person who has suffered a serious injury or illness) not expected to die（重伤或重病者）脱离危险期。
词源
Middle English: from Old French dangier, based on Latin dominus 'lord'. The original sense was 'jurisdiction or power', specifically 'power to harm', hence the current meaning 'liability to be harmed'.