1. the process of catching fire or starting to burn
2. the electrical system in a vehicle that starts the engine
Usage: automotive

Examples

• The mechanic checked all the ignitions in the fleet of delivery trucks.
• Faulty ignitions were the cause of several engine problems.
• The dry leaves showed signs of multiple ignitions during the wildfire.
• Modern cars have electronic ignitions instead of traditional points.
• The laboratory studied the ignitions of different chemical compounds.
• Several ignitions occurred when the gas leak met the open flames.