IPA: /ˈlʌmbərˌdʒæk/
KK: /ˈlʌmbərˌdʒæk/
A person who cuts down trees for wood and takes the logs to a sawmill.
The lumberjack worked hard all day to fell the tall trees in the forest.
Lumberjack → The word is formed from "lumber" (from Middle English *lumber*, meaning timber or logs) and "jack" (a term used for a man or worker). A lumberjack is a man who works with timber, specifically cutting down trees and processing wood.
Think of a 'jack' as a worker who deals with 'lumber' — that's why a lumberjack is someone who works with timber.