what the meaning of crisis do you understand?

Nowdays,people are always talking about crisis..economic crisis,financial crisis,marriage crisis,perak crisis and etc..

The word crisis means traumatic or stressful change in a person's life, or an unstable and dangerous social situation, in political, social, economic, military affairs, or a large-scale environmental event, especially one involving an impending abrupt change. More loosely, it is a term meaning 'a testing time' or 'emergency event'.