Ignition systems refer to the mechanism that provides a spark or flame to start an internal combustion engine. Variations of this term include engine start systems, ignition starters, and ignition setups. In the automotive industry, common synonyms for ignition systems are spark systems, ignition coils, and plug-in ignition systems. For aviation enthusiasts, magneto ignition systems or magnetos are also used to refer to the same mechanism. Additionally, some hybrid or electric vehicles utilize electronic ignition systems, or e-ignition systems, which operate differently than traditional spark ignition systems. Regardless of the specific term, all ignition systems play a critical role in starting and running various types of engines.