(1) 危险(possibility， threat or risk of harm， injury， damage or loss) [U][N(of)]：Is there any～of fire/being tried? 有发生火灾/受审判的危险吗? There's a lot of/a great～in climbing mountains. 登山危险很多/大。There's no/little～of the murderer running away. 凶手不/几乎不可能逃掉。D～! Falling rocks/Thin ice/Winding road/Road under repair.危险!有坠石/冰很薄/前方是弯路/正在修路。warn sb of the～of ... 提醒某人有……的危险;a～signal危险讯号;～money危险工作津贴;face～with courage勇敢面对危险;(life) be full of～(生活)充满危险;

(2) 危险(状况)(state or situation of being exposed to harm， injury， damage or loss) [U]：(life) be in (great/real)～(生命)有(很大/真正的)危险;(person) be in (great/real)～of death/one's life/losing one's life/catching cold(人)(很/真)有死亡/生命/失去生命/感冒的危险;(bridge) be in～of collapse(桥)有倒塌的危险;be in no～没有危险;be/get out of～脱离危险;〖同〗hazard， risk; 〖反〗safety， security;

(3) 危险的人(物)，威胁(person or thing that may cause harm， injury， damage， loss， etc) [C] [N(to)]： (smoking) be a～to health(抽烟)对健康有害;(winding road)be a～to drivers(弯路)对司机有危险;(wreck) be a～to shipping(沉船)对船运是个威胁;(fog) be a～to pilots(雾)对飞行员是个威胁;(criminal)be a～to society(罪犯)对社会是危险人物;(warlike people) be a～to peace(好战者)对和平是危险;the～of smoking抽烟的危害;the～of the open sea公海的危险;face many～s in one's travels旅行中面临许多危险;

→′dangerous adj 危险的; ′dangerously adv 危险地;

【辨异】danger与hazard都表示“危险”。danger为常用语，可指各种危险(眼前的或遥远的， 确定的或不确定的，等);hazard(危险，不测风云)指不可预见也无法避免的危险，如：A soldier is exposed to many hazards.(战士随时有危险.) 还有peril(危急，严重危险)，语义比danger强，指迫近的巨大危险，如：The passengers on the disabled ship were in great peril.(那艘受到严重损坏的船上的乘客处境危急。)