IPA: /ɪɡˈnaɪtər/
KK: /ɪgˈnaɪtər/
A device that starts a fire or ignites a fuel mixture, often used in engines or explosives.
The igniter in the engine ensures that the fuel burns efficiently.
Igniter → It is formed from "ignite" (from Latin "ignire", meaning to set on fire) and "-er" (meaning a person who). An igniter is a person or thing that sets something on fire or causes it to ignite.
Think of someone who 'sets on fire' ('ignite') — the '-er' just means a person. An igniter is someone who causes something to catch fire.