Risk taker and Spark plug

Risk taker noun - Someone who risks loss or injury in the hope of gain or excitement.

Spark plug and risk taker are semantically related. in go-getter topic. In some cases you can use "Spark plug" instead a noun phrase "Risk taker".

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.

Risk taker and spark plug are semantically related. Sometimes you can replace phrase "Risk taker" with "Spark plug", this phrases are similar.