Noun

• S: (n) emergency, exigency, pinch (a sudden unforeseen crisis (usually involving danger) that requires immediate action) "he never knew what to do in an emergency"
• S: (n) emergency (a state in which martial law applies) "the governor declared a state of emergency"
• S: (n) hand brake, emergency, emergency brake, parking brake (a brake operated by hand; usually operates by mechanical linkage)