IPA: /ˈstiːpəlˌdʒæk/
KK: /ˈstipəlˌjak/
A person who works on very tall buildings or structures, like church steeples or smokestacks, often climbing to great heights to build, repair, or paint them.
The steeplejack carefully climbed to the top of the church to fix the weather vane.
Steeplejack is formed from "steeple" (from Old English *stigpul*, meaning a structure or tower) and "jack" (from Middle English *jacke*, a diminutive form of John, often used to refer to a man or worker). The word describes a worker who climbs tall structures, particularly steeples, to perform maintenance or repairs.
Think of a 'man' or 'worker' ('jack') who climbs a 'tower' or 'structure' ('steeple') to fix or maintain it — that's what a steeplejack does.
No commonly confused words.