n.
  - the possibility of suffering harm or injury. 
▸a cause of harm or injury.
 - the possibility of something unwelcome or unpleasant:
 there was no danger of the champagne running out.
 
 
  Phrase
  
    
      - be on 
(or off)
 the danger list
 Brit. be critically ill (or no longer critically ill). 
    
   
  Etymology
  ME (in the sense ‘jurisdiction or power’, ‘power to harm’): from OFr. dangier, based on L. dominus ‘lord’.