Translation guide
A device in an engine that ignites fuel, or metaphorically, a person or thing that energizes or initiates something.
The physical component in an internal combustion engine that produces a spark to ignite the fuel-air mixture.
A person who inspires, motivates, or drives a group or project forward.
An event, idea, or thing that triggers significant change or activity.
The most common and direct translation, used in automotive contexts.
You need to replace the spark plugs.
A slightly more technical term, literally 'ignition plug'. Used in manuals and by mechanics.
Please check the condition of the spark plugs.
Literally 'detonator', used metaphorically for a person who sparks action or change. Common in business and sports contexts.
He became the spark plug of the team.
Literally 'fire-starter role', used for someone who initiates a movement or trend. Slightly more dramatic.
She was the spark plug for the project.
Means 'pulling role', used for someone who leads and drives a team forward. Less explosive nuance, more about steady leadership.
He played the role of spark plug for the team.
Same as for a person, but applied to an event or thing. Very versatile.
The new product became the spark plug for the market.
Literally 'priming water', used for something that triggers a larger reaction or process. Often used in economic or social contexts.
That policy became the spark plug for economic recovery.
A general term for 'trigger' or 'opportunity'. Less forceful than 'spark plug', but very common.
That encounter became the spark plug for a turning point in his life.