Man of influence and Spark plug

Spark plug and man of influence are semantically related. in comer topic. In some cases you can use "Spark plug" instead a noun phrase "Man of influence", when it comes to topics like person who makes things happen.

Spark plug noun - Electrical device that fits into the cylinder head of an internal-combustion engine and ignites the gas by means of an electric spark.

Man of influence and spark plug are semantically related. You can use "Man of influence" instead a noun phrase "Spark plug".