1. the failure of a jet engine due to the extinction of the flame in the combustion chamber
Usage: aviation
2. a sudden failure or collapse, especially of a career or enterprise
Usage: informal

Examples

• The pilot managed to restart the engine after the flameout.
• Both engines experienced flameout during the storm.
• The aircraft made an emergency landing following a flameout.
• His political career ended in a spectacular flameout.
• The startup’s flameout surprised many investors.
• After years of success, the company suffered a sudden flameout.
• The celebrity’s flameout was covered extensively by the media.