1 : actively engaged in paid work; "the working population"; "the ratio of working men to unemployed"; "a working mother"; "robots can be on the job day and night"
2 : working for hourly wages rather than fixed (e.g. annual) salaries; "working-class occupations include manual as well as industrial labor"
3 : characterized by hard work and perseverance
4 : working hard to promote an enterprise
nom
1 : one who works strenuously
2 : a member of the working class (not necessarily employed)
