lumberjackPronunciation: /ˈlʌmbədʒak/ (also lumberman)Translate lumberjack | into French | into German | into Italian | into Spanish Definition of lumberjack noun (especially in North America) a person who fells trees, cuts them into logs, or transports them to a sawmill. lumberjack in other Oxford dictionaries Definition of lumberjack in the US English dictionary